Clean Up Component Store (WinSxS folder) in Windows 10

steve108 · 16 Sep 2020

Brink said:

Hello,

You can use the method in the tutorial below to analyze the component store to see its current size of items in it to help get an idea. In addition, you can use this method to compare before and after for an exact amount recovered.

Analyze Component Store (WinSxS folder) in Windows 10

Did this on a 19041.508 Windows 10 PC today and it went from Component Store size of about 11 GB to 7 GB.

Brink · 16 Sep 2020

swDev3dbtf said:

Did this on a 19041.508 Windows 10 PC today and it went from Component Store size of about 11 GB to 7 GB.

Not bad.

ksio89 · 20 Dec 2020

I have the same issue as FrankW, it is, getting Error: 5 Access is denied after typing the command shown on Option Two. This is happening on a machine running 20H2 19042.685. From what I've searched, it seems to be a pretty common issue with DISM not having the necessary permissions. I checked the WinSxS folder, and its owner is TrustedInstaller, which has full control over it, I believe it's expected. I can't believe I will need to refresh Windows just to get proper permissions, what a joke.

Nevermind, after doing an in-place upgrade, I got the permission and managed to execute the command on Option 2.

Napkins333 · 04 Apr 2021

Then, the best series of commands, run in Safe Mode, is:

fsutil resource setautoreset true c:\&fsutil usn deletejournal /d /n c: (cleans up NTFS file system)

then:

Dism.exe /online /Cleanup-Image /StartComponentCleanup

Dism.exe /Online /Cleanup-Image /RestoreHealth

Dism.exe /Online /Cleanup-Image /StartComponentCleanup /ResetBase

When all done, reboot back to Normal Mode.

NOTE: Optionally, a SFC /SCANNOW run first before anything ensures the component store system files are correct.

Is all this still applicable today 2021 for windows 10?? Including that first command? (fsutil?)

Brink · 04 Apr 2021

Napkins333 said:

Is all this still applicable today 2021 for windows 10?? Including that first command? (fsutil?)

Hello,

Yes, it's all still valid in Windows 10.

TairikuOkami · 04 Apr 2021

Napkins333 said:

Is all this still applicable today 2021 for windows 10??

Except ResetBase, which is disabled by registry and ignored, because using it breaks stuff, like updates.

NMI · 04 Apr 2021

TairikuOkami said:

Except ResetBase, which is disabled by registry and ignored, because using it breaks stuff, like updates.

ResetBase appears to work still:

Clean Up Component Store (WinSxS folder) in Windows 10-resetbase.png

TairikuOkami · 04 Apr 2021

abbodi1406 said:

ResetBase was disabled for offline images since build 16299 (even if you changed the registry DisableResetbase)
but was working for online system after changing the registry

apparently in 18362 it's disabled for both
even regular behavior is disabled (delta-compress old components)

Windows 10 Hotfix Repository | Page 420 | My Digital Life Forums

I can cofirm, that it breaks updates with certain CUs, I had to restore a system image to fix it.

WIndows 10 Hotfix Repository | Page 514 | My Digital Life Forums

OldMike65 · 04 Apr 2021

TairikuOkami said:

Windows 10 Hotfix Repository | Page 420 | My Digital Life Forums

I can cofirm, that it breaks updates with certain CUs, I had to restore a system image to fix it.

WIndows 10 Hotfix Repository | Page 514 | My Digital Life Forums

I have 2 custom made PS's running Windows 10 Pro and I've used ResetBase command many times without any issues. Might just be your Windows version....