Home » Questions » Computers [ Ask a new question ]

Why does the /winsxs folder grow so large, and can it be made smaller?

Why does the /winsxs folder grow so large, and can it be made smaller?

A Vista virtual machine I use only has a 10 GB virtual hard disk -- and I'm worried about it running out of space over time.

Asked by: Guest | Views: 39
Total answers/comments: 5
Guest [Entry]

"Looks like there is finally a way to do this in Windows 8.1 service pack 1 and Windows Server 2012 R2.

Component store analysis tool:

Dism.exe /Online /Cleanup-image /AnalyzeComponentStore

At the end of the scan, the user gets a report of the results (actual size of the winsxs folder) like this:

Component store cleanup:

Today, Component Store Cleanup must be triggered manually by an end-user, either by running DISM, or by using the Disk Cleanup Wizard. In order to make Component Store Cleanup more useful for the average end-user, it will be added into a maintenance task, automatically saving disk space for end-users. To enable this, a change will be made to allow uninstallation of superseded inbox drivers without requiring a reboot (today, all driver installs/uninstalls done by CBS require a reboot).

Dism.exe /online /Cleanup-Image /StartComponentCleanup
Disk Cleanup tool, Clean up system files button.

schtasks.exe /Run /TN ""\Microsoft\Windows\Servicing\StartComponentCleanup"""
Guest [Entry]

"These duplicates and backups are extremely annoying when having limited disk space.

Being in that place, the only way I found that would not jeopardize the OS stability was to generously use the ""Compress contents to save disk space"" setting.

By compressing all those backup directories under the Windows directory, I was able to reduce the directory size from 6.5 GB to 5 GB, with no recognizeable side effects. Using it on some of your stuff outside the Window directory would stretch your 10 GB even more."
Guest [Entry]

You could use VSP1CLN.EXE to make SP1 permanent, which according to this page will free up superseded-by-SP1 components.
Guest [Entry]

"Good news! There is now an officially sanctioned method, from Microsoft, for Windows 7 SP1, to clean out your WinSXS folder.

Install HotFix 2852386 - you can either download manually, or wait for it to come through your Windows Update
This adds a new option to the Disk Cleanup Wizard (Under Clean Up System Files) that you can enable for ""Windows Update Cleanup"". Tick this option.
Click OK

Caveat: You may be unable to un-install certain Windows Updates after running the cleanup of your WinSxS folder."
Guest [Entry]

"Looks like there is finally a way to do this in Windows 8.1 service pack 1 and Windows Server 2012 R2.

Component store analysis tool:

Dism.exe /Online /Cleanup-image /AnalyzeComponentStore

At the end of the scan, the user gets a report of the results (actual size of the winsxs folder) like this:

Component store cleanup:

Today, Component Store Cleanup must be triggered manually by an end-user, either by running DISM, or by using the Disk Cleanup Wizard. In order to make Component Store Cleanup more useful for the average end-user, it will be added into a maintenance task, automatically saving disk space for end-users. To enable this, a change will be made to allow uninstallation of superseded inbox drivers without requiring a reboot (today, all driver installs/uninstalls done by CBS require a reboot).

Dism.exe /online /Cleanup-Image /StartComponentCleanup
Disk Cleanup tool, Clean up system files button.

schtasks.exe /Run /TN ""\Microsoft\Windows\Servicing\StartComponentCleanup"""