what happens if you compress a drive to save disk space

If your PC is running low on free space, you might not be able to install important Windows updates, and your PC'due south performance may exist affected. Here are some ways to gratis upwards space and then you lot can continue your PC up to date and running smoothly. These suggestions are listed in order, so beginning with the first one, see if that helps, and and so continue to the next one if it doesn't.

To check the full disk infinite left on your Windows 11 device, select File Explorer from the taskbar, and then select This PC on the left. The available space on your drive will appear under Devices and drives.

Notation:If you follow the steps beneath and continue to have problem updating Windows considering of low deejay space, resetting or reinstalling Windows might help. For more info, see Reinstall Windows.

If y'all used Disk Cleanup to gratuitous up space on your device and so see a Low Deejay Space error, it's possible that your Temp folder is apace filling up with awarding (.appx) files that are used by Microsoft Shop. For more info, run into Low Disk Space error due to a full Temp folder.

Storage Sense tin can automatically complimentary upwardly drive space for you lot by getting rid of items that you don't need, similar temporary files and items in your Recycle Bin. For more info, encounter Manage drive space with Storage Sense.

If your system doesn't accept Storage sense, you can employ the Deejay Cleanup tool to delete temporary files and system files from your device.

1. In the search box on the taskbar, blazon disk cleanup, then select it from the results.

2. Select the check box next to the blazon of files you lot desire to delete. (To view a description of each type of file, select the name.) By default, Downloaded Program Files, Temporary Internet Files, and Thumbnails are selected. Be sure to clear those check boxes if you don't want to delete those files.

3. To free upwards fifty-fifty more infinite, select Make clean upwardly system files, and so select the blazon of system files y'all want to delete. Disk Cleanup will take a few moments to calculate the amount of space that can exist freed upwardly.

   Annotation:If it's been fewer than 10 days since you upgraded to Windows 10, your previous version of Windows volition be listed as a organisation file y'all tin delete. If you need to free up drive infinite, you tin delete information technology, only keep in mind that you'll be deleting your Windows.old binder, which contains files that requite you the option to go back to your previous version of Windows. If you delete your previous version of Windows, this can't exist undone. (You won't be able to become back to your previous version of Windows.)

4. Afterward you've selected the types of files you lot desire to delete, select OK, and then select Delete files in the confirmation window to beginning the cleanup.

Of import:

• At that place'due south also an option in Deejay Cleanup to Compress your Os drive. Selecting this option compresses the bulldoze on which Windows is installed, helping you gain extra space to install important updates. This activeness does not delete the contents of this drive, and you shouldn't experience problems opening and saving files from the compressed bulldoze.

• After yous install the update, y'all tin can manually decompress the OS drive at any time. To do this, select File Explorer from the taskbar, and in the left pane, selectThis PC. Right-click or tap and hold the Bone drive (usually disk C), and then select Properties on the shortcut menu. Clear the Compress this bulldoze to salvage disk infinite check box, and so selectApply >OK.

Windows eleven may signal that it needs more space to get the latest Windows 11 feature update. You lot can use an external storage device to help y'all complete the update.

To learn more, see Costless upwards infinite for Windows updates.

Note:You may demand to apply a micro-USB adapter if your device doesn't have a standard USB port.

Personal files such every bit videos, music, photos, and documents can take up a lot of infinite on your device. To see which files are using the most infinite:

1. Select File Explorer from the taskbar and observe the files yous want to move.

2. UnderThis PCin the bill of fare on the left, select a binder to see what files are saved in it. The Videos, Music, Pictures, and Downloads folders usually contain the largest files that y'all've saved to your device.

3. To come across the size of the files in a folder, select View > Details. Right-click in the open up space and so select Sort by > Size to evidence the largest files at the top of the list.

4. If there are files you no longer need on your device, you tin either delete them or motility them to an external storage device like a USB bulldoze or an SD card.

Note:If you delete whatsoever files, call back to empty the Recycle Bin to completely remove them from your device and gratuitous up space.

To move photos, music, videos, or other files that you want to keep but don't use very ofttimes, consider saving them to an external storage device like a USB drive or an SD menu. Yous'll still be able to use them when the drive is connected, merely they won't take up space on your PC.

1. Connect an external storage device like a USB drive or SD card to your PC.

2. Select File Explorer  from the taskbar and get to the binder that contains the files you want to move.

3. Select the files, then select Cut on the ribbon. Navigate to the location of the external storage device you connected, then select Paste.

Saving new files to another bulldoze will help prevent depression space bug on that drive in the time to come, so y'all won't have to move your files to another drive repeatedly. Instead of saving all your new files to the default drive, you lot can save some of them to a unlike drive that has more than free space.

1. Select Starting time > Settings > System > Storage > Advanced storage settings > Where new content is saved.
   Open Storage settings

2. For each content blazon, select a drive from the drib-down menu. If the drive you want to use isn't listed there, brand sure it's continued to your PC.

You can save infinite by turning on OneDrive Files On-Demand, which stores a smaller placeholder file on your hard drive instead of the full-size file that's stored in your OneDrive account in the deject. You'll be able to get to your OneDrive files from your PC without having to utilise upward hard-bulldoze infinite downloading full-size versions of them all. See Learn about OneDrive Files On-Need for more than info.

Sometimes a virus or other malware can swallow meaning difficult-bulldoze infinite past corrupting your organisation files. If you suspect your PC is infected with malware, use an antivirus program similar Windows Defender to run a virus scan and cleanup. If this doesn't prepare the problem, you lot might demand to reset your PC.

If you've followed the instructions here only nonetheless need assist freeing up infinite on your device, y'all can contact Microsoft back up to chat with a support agent. This is also recommended if your attempts to free upwardly drive infinite trigger particular fault codes that you need assist resolving.

The following questions business organization low disk space and Windows Update specifically. Learn more about Windows Update.

When there isn't enough gratuitous infinite available to install an update, a popular-up notification volition prompt you that additional space is required to install the update.

When you select Fix issues, you'll be informed about how much additional space is needed. You'll also be notified that you can use an external storage device so that yous don't need to free upwardly quite as much space on your system drive. Larn how to free upwards infinite to install Windows updates.

The total gratuitous deejay space your device requires to consummate an update varies. Typically, feature updates crave 6 GB–11 GB or more of free space, while quality updates require 2 GB–iii GB or more. Larn about the departure between a characteristic update and a quality update.

Y'all need disk infinite to download the update, download new versions of any optional features and languages that are currently installed, and to apply the update. Additional infinite is temporarily required to support removal of the update (typically for 10 days). This space tin be reclaimed later on the update is completed. To do this, Select Offset > Settings > Organisation > Storage > Cleanup recommendations.
Open Storage settings

The update is compressed to reduce download size.

Note:For devices with reserved storage, an update volition first apply the reserved storage space before using other disk space. For more info, come across How reserved storage works in Windows.

The infinite required to complete a feature update depends on two factors: which update path is followed and the size of optional content and other updates that utilise to your PC when the feature update is installed.

Note:For devices with reserved storage, an update volition offset utilize the reserved storage space before using other disk space. For more info, see How reserved storage works in Windows.

Windows follows three different characteristic update paths, depending on the amount of disk space currently bachelor.

1. For PCs with plenty of complimentary disk space

Windows automatically tries to complete more of the update process in the background while you utilize your PC. This significantly reduces the time your PC will exist offline (or unusable) during the update, although it might temporarily employ more disk space to consummate the update. Learn more about our efforts to reduce offline time during updates (English only at this time).

2. For PCs with express free space just still enough to consummate the update automatically

Windows will automatically optimize for reducing the amount of free disk infinite required to install the update. This will result in a longer offline install fourth dimension.

3. For PCs that don't have enough space to automatically install the update

Windows volition prompt you to free up disk infinite or use external storage to temporarily extend the storage on your PC. If you utilize an external storage device, Windows won't need as much free space on the organisation drive every bit information technology temporarily uses your external storage.

Across each of these update paths, the total corporeality of free disk space required will vary, depending on the optional content installed and other updates that utilise to your PC. For example:

• Optional features. Many optional features available for Windows are pre-installed or acquired on demand by the system, or manually by you. Yous can see which ones are installed on your PC by going to Settings > Apps> O ptional features.
  Open Optional features settings
  These features range in size from less than i MB to well-nigh 2 GB for the Windows Mixed Reality portal. You can reduce the amount of space required to install a feature update on your PC by uninstalling optional features you aren't using.

• Languages installed. Windows is localized into many languages. Although many people merely use one language at a time, some people switch betwixt ii or more than languages. You tin can see which languages are installed on your PC past selecting Offset > Settings > Time & linguistic communication > Language & region.
  Open Language settings
  During each update, all linguistic communication resources and any associated typing, text-to-speech, speech-to-text, and handwriting recognition resources must exist updated. The content for each linguistic communication can range from virtually 175 MB to more than 300 MB. You can reduce the amount of space required to install a feature update on your PC by uninstalling languages you lot aren't using.

• Commuter updates. OEMs and other hardware partners sometimes publish new graphics, networking, audio, and other drivers in conjunction with the new Bone update. The size of these drivers tin vary significantly, depending on your PC and on which drivers have been updated.

• OS quality updates. During a characteristic update, Windows tries to download and automatically install the latest quality update so that your PC is fully up to date when you start using it. Shortly afterward the feature update is released, the quality update for that characteristic update could be every bit small as a few hundred MB, merely equally more quality and security changes are implemented, the quality update tin increase in size to 1 GB or more. If your PC is short on disk infinite, you can download and install the quality update after the feature update is complete.

Finally, Windows Update will temporarily disable hiberfile.sys, pagefile.sys, and other organization files in order to use the space these files typically eat to utilize the feature update. Any files that are disabled to apply the update will be automatically re-enabled when the update is complete. Because these files vary in size depending on how yous apply your PC and the amount of RAM your PC has, even in cases where two different PCs have the verbal same Bone paradigm, the amount of free disk infinite required to complete an update may vary.

The combination of update path and features means there'southward a broad range of free deejay space required to complete an update. Hither are a few examples for PCs updating to Windows 10 version 1803:

	Optimized for reduced offline fourth dimension	Optimized for minimal disk space	Optimized for minimal deejay infinite with external storage
Minimal optional features, languages, and updates	twenty GB	5.5 GB+	iv.five GB+
Lots of optional features, languages, and updates	xx GB+	xiii.75 GB+	vii GB+

To check the total deejay infinite left on your Windows xi device, select File Explorer  from the taskbar, and then select This PC on the left. The available infinite on your drive volition appear under Devices and drives.

It may be best to utilise an external storage device in the following cases:

• When admission to the net isn't bachelor.

• When you need to store large files or a large number of files. In these situations, the files by and large take longer to upload and it might cost more to store files.

Generally, we recommend that you lot choose a larger capacity device because your local storage and disk space needs may change over time. If you lot know that you won't have many photos, videos, or other files and apps to relieve to your device, the 32 GB device might be a good selection for you. A good case is a device that you only use to run one minor app, or that you just use for online content that never gets downloaded to the local hard drive.

When considering what storage hardware to use in your device, don't look but at the hardware's storage capacity. Often, the speed of the storage is more important than its size. Devices with wearisome storage hardware, such as those labeled "HDD" are typically slower to apply than those using faster storage hardware, such as those labeled "SSD" or "eMMC."

You lot don't demand to remove everything from your hard bulldoze to update your device, merely you'll need to gratis upwards plenty space to consummate the update.

Related topics

• Tips to improve PC performance in Windows

• Get help with Windows activation errors

If your PC is running low on complimentary space, you lot might non be able to install of import Windows updates, and your PC'south performance may exist affected. Hither are some ways to costless up infinite so you tin keep your PC up to engagement and running smoothly. These suggestions are listed in society, so starting time with the first one, see if that helps, and so continue to the next 1 if it doesn't.

To check the total deejay infinite left on your Windows ten device, select File Explorer from the taskbar, and then select This PC on the left. The available space on your drive will appear under Devices and drives.

Notation:If you follow the steps below and continue to accept problem updating Windows because of low disk space, resetting or reinstalling Windows might help. For more info, see Reinstall Windows.

If you used Disk Cleanup to gratuitous up space on your device and then see a Low Disk Space fault, it's possible that your Temp binder is quickly filling up with application (.appx) files that are used by Microsoft Store. For more info, see Low Disk Space error due to a total Temp folder.

Storage Sense tin automatically free upwardly drive space for yous by getting rid of items that you don't need, like temporary files and items in your Recycle Bin. For more than info, see Manage bulldoze space with Storage Sense.

If your system doesn't have Storage sense, you tin can use the Deejay Cleanup tool to delete temporary files and system files from your device.

1. In the search box on the taskbar, type deejay cleanup, then select it from the results.

2. Select the check box next to the type of files you desire to delete. (To view a description of each type of file, select the proper name.) By default, Downloaded Program Files, Temporary Internet Files, and Thumbnails are selected. Be certain to articulate those check boxes if yous don't want to delete those files.

3. To gratuitous up even more space, select Clean up system files, and then select the blazon of system files you want to delete. Disk Cleanup volition take a few moments to calculate the amount of infinite that can exist freed upwards.

   Note:If it's been fewer than 10 days since you upgraded to Windows 10, your previous version of Windows will be listed as a organisation file y'all can delete. If you need to free up drive infinite, you can delete information technology, but keep in listen that you'll be deleting your Windows.old folder, which contains files that give y'all the option to become back to your previous version of Windows. If you delete your previous version of Windows, this can't be undone. (You won't be able to go back to your previous version of Windows.)

4. After you lot've selected the types of files you want to delete, select OK, then select Delete files in the confirmation window to starting time the cleanup.

Important:

• There'south as well an pick in Disk Cleanup to Compress your Os drive. Selecting this option compresses the drive on which Windows is installed, helping you gain extra space to install important updates. This activity does not delete the contents of this drive, and you shouldn't feel problems opening and saving files from the compressed bulldoze.

• After you install the update, you can manually decompress the Os drive at any fourth dimension. To do this, select File Explorer from the taskbar, and in the left pane, selectThis PC. Right-click or tap and concord the Os drive (ordinarily deejay C), then select Properties on the shortcut menu. Clear the Shrink this drive to save deejay infinite cheque box, and then selectApply >OK.

Windows 10 may betoken that it needs more space to get the latest Windows 10 feature update. You tin use an external storage device to help you complete the update.

To learn more, encounter Complimentary upward space for Windows updates.

Note:Y'all may need to use a micro-USB adapter if your device doesn't have a standard USB port.

Personal files such as videos, music, photos, and documents tin can take upwards a lot of space on your device. To come across which files are using the nearly space:

1. Select File Explorer from the taskbar and detect the files yous want to move.

2. NetherThis PCin the menu on the left, select a folder to see what files are saved in information technology. The Videos, Music, Pictures, and Downloads folders usually contain the largest files that you've saved to your device.

3. To run across the size of the files in a folder, select View > Details. Right-click in the open space and then select Sort by > Size to show the largest files at the peak of the listing.

4. If there are files y'all no longer need on your device, you tin either delete them or move them to an external storage device like a USB drive or an SD carte du jour.

Notation:If you delete any files, think to empty the Recycle Bin to completely remove them from your device and free up space.

To move photos, music, videos, or other files that you want to continue but don't apply very often, consider saving them to an external storage device similar a USB drive or an SD card. You lot'll still exist able to utilise them when the drive is connected, but they won't take upwards space on your PC.

1. Connect an external storage device like a USB drive or SD card to your PC.

2. Select File Explorer  from the taskbar and go to the folder that contains the files you want to move.

3. Select the files, select the Dwelling house tab, and so select Move to > Choose location.

4. Select the external storage device yous continued in the location list, and so select Movement.

Saving new files to another bulldoze will help prevent low space problems on that bulldoze in the hereafter, so y'all won't have to move your files to some other drive repeatedly. Instead of saving all your new files to the default bulldoze, you can save some of them to a different drive that has more free space.

1. Select Offset > Settings > Organisation > Storage .
   Open up Storage settings

2. Under More than storage settings, select Change where new content is saved.

3. For each content type, select a drive from the drop-downwardly carte. If the drive you want to utilize isn't listed there, brand sure it's connected to your PC.

Note:OneDrive Files On-Need requires Windows 10 version 1709 or later and OneDrive client version 17.3.7064.1005 or after. To run across which version of Windows you're running, select First > Settings > Organization > About . To see which version of the OneDrive client y'all have installed, see Which version of OneDrive am I using?
Open Virtually settings

You can save space by turning on OneDrive Files On-Demand, which stores a smaller placeholder file on your hard drive instead of the total-size file that'due south stored in your OneDrive account in the deject. Y'all'll be able to get to your OneDrive files from your PC without having to apply up difficult-drive infinite downloading full-size versions of them all. See Learn about OneDrive Files On-Demand for more info.

Sometimes a virus or other malware tin can eat significant hard-drive space by corrupting your organization files. If you lot suspect your PC is infected with malware, use an antivirus program like Windows Defender to run a virus scan and cleanup. If this doesn't fix the trouble, you might need to reset your PC.

If you've followed the instructions here simply even so need assistance freeing up space on your device, you tin can contact Microsoft support to conversation with a support amanuensis. This is as well recommended if your attempts to free upwards drive space trigger item mistake codes that you lot need help resolving.

The following questions concern low deejay space and Windows Update specifically. Learn more almost Windows Update.

When there isn't plenty costless infinite available to install an update, a pop-up notification volition prompt you that additional infinite is required to install the update.

When you select Fix bug, you'll exist informed almost how much additional infinite is needed. You'll also be notified that yous tin employ an external storage device and then that yous don't need to free up quite every bit much space on your system drive. Acquire how to gratuitous up space to install Windows updates.

The total gratis disk space your device requires to complete an update varies. Typically, characteristic updates require 6 GB–11 GB or more of free space, while quality updates require 2 GB–3 GB or more. Larn nearly the difference between a feature update and a quality update.

You need disk space to download the update, download new versions of whatever optional features and languages that are currently installed, and to employ the update. Additional space is temporarily required to back up removal of the update (typically for 10 days). This space tin can be reclaimed afterward the update is completed. To do this, Select Start > Settings  > System  > Storage > Free up space now.
Open Storage settings

The update is compressed to reduce download size.

Note:For devices with reserved storage, an update volition offset apply the reserved storage space earlier using other disk infinite. For more info, come across How reserved storage works in Windows.

The infinite required to complete a feature update depends on 2 factors: which update path is followed and the size of optional content and other updates that apply to your PC when the characteristic update is installed.

Note:For devices with reserved storage, an update will get-go employ the reserved storage space before using other disk space. For more info, see How reserved storage works in Windows.

Windows follows three different feature update paths, depending on the amount of disk infinite currently available.

1. For PCs with plenty of free disk space

Windows automatically tries to consummate more than of the update process in the groundwork while you use your PC. This significantly reduces the time your PC will be offline (or unusable) during the update, although information technology might temporarily use more than deejay infinite to complete the update. Learn more nearly our efforts to reduce offline time during updates (English only at this time).

two. For PCs with express gratuitous space but still enough to complete the update automatically

Windows volition automatically optimize for reducing the amount of free deejay space required to install the update. This will result in a longer offline install fourth dimension.

iii. For PCs that don't accept enough space to automatically install the update

Windows will prompt you to free up disk space or use external storage to temporarily extend the storage on your PC. If you use an external storage device, Windows won't need as much free space on the system drive as it temporarily uses your external storage.

Across each of these update paths, the total amount of complimentary deejay space required will vary, depending on the optional content installed and other updates that apply to your PC. For example:

• Optional features. Many optional features available for Windows are pre-installed or caused on demand by the system, or manually by you. You tin run into which ones are installed on your PC by going to Settings  > Apps > Apps & features  > Manage optional features.
  Open Optional features settings
  These features range in size from less than 1 MB to nearly ii GB for the Windows Mixed Reality portal. You lot tin can reduce the amount of space required to install a feature update on your PC by uninstalling optional features you aren't using.

• Languages installed. Windows is localized into many languages. Although many people only use one language at a time, some people switch between 2 or more languages. You lot tin see which languages are installed on your PC by selecting Showtime  > Settings  > Time & Linguistic communication  > Language .
  Open Language settings
  During each update, all linguistic communication resource and any associated typing, text-to-spoken communication, spoken communication-to-text, and handwriting recognition resources must exist updated. The content for each language tin range from nigh 175 MB to more than 300 MB. You can reduce the amount of infinite required to install a characteristic update on your PC by uninstalling languages you aren't using.

• Commuter updates. OEMs and other hardware partners sometimes publish new graphics, networking, audio, and other drivers in conjunction with the new OS update. The size of these drivers can vary significantly, depending on your PC and on which drivers have been updated.

• OS quality updates. During a feature update, Windows tries to download and automatically install the latest quality update so that your PC is fully up to appointment when you lot start using it. Before long later the characteristic update is released, the quality update for that characteristic update could be as small as a few hundred MB, but as more quality and security changes are implemented, the quality update tin can increase in size to 1 GB or more. If your PC is curt on disk space, you can download and install the quality update after the feature update is complete.

Finally, Windows Update volition temporarily disable hiberfile.sys, pagefile.sys, and other system files in order to use the infinite these files typically consume to employ the feature update. Any files that are disabled to apply the update will be automatically re-enabled when the update is complete. Because these files vary in size depending on how you utilise your PC and the corporeality of RAM your PC has, even in cases where two different PCs take the exact aforementioned Bone image, the amount of free disk space required to complete an update may vary.

The combination of update path and features ways there'southward a wide range of costless disk space required to complete an update. Here are a few examples for PCs updating to Windows version 1803:

	Optimized for reduced offline time	Optimized for minimal deejay space	Optimized for minimal disk space with external storage
Minimal optional features, languages, and updates	xx GB	v.five GB+	4.5 GB+
Lots of optional features, languages, and updates	twenty GB+	13.75 GB+	7 GB+

To check the total disk infinite left on your Windows x device, select File Explorer  from the taskbar, and and then select This PC on the left. The available infinite on your drive will appear under Devices and drives.

Information technology may be all-time to apply an external storage device in the following cases:

• When access to the net isn't available.

• When you lot need to store big files or a large number of files. In these situations, the files generally accept longer to upload and it might cost more to store files.

Windows Update automatically offers updates to eligible devices. To double check that your device is upwards to date, select Start > Settings > Update & Security  > Windows Update , and then select Cheque for updates.
Check for updates

Learn more about Windows Update.

Generally, we recommend that you cull a larger capacity device considering your local storage and disk infinite needs may change over time. If you lot know that you won't take many photos, videos, or other files and apps to save to your device, the 32 GB device might be a good option for yous. A good example is a device that you only employ to run one minor app, or that you lot simply utilize for online content that never gets downloaded to the local difficult drive.

When considering what storage hardware to use in your device, don't look only at the hardware'southward storage capacity. Often, the speed of the storage is more of import than its size. Devices with ho-hum storage hardware, such as those labeled "HDD" are typically slower to use than those using faster storage hardware, such as those labeled "SSD" or "eMMC."

You lot don't demand to remove everything from your hard drive to update your device, but yous'll need to free up enough space to consummate the update.

Related topics

• Tips to amend PC performance in Windows

• Get help with Windows activation errors

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Source: https://support.microsoft.com/en-us/windows/free-up-drive-space-in-windows-85529ccb-c365-490d-b548-831022bc9b32

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