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(Solved) - Safe to delete files in C:\Windows\winsxs\Backup ?

(5 posts)
  • Started 6 years ago by random123
  • Latest reply from vistamike
  • Topic Viewed 44696 times

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Posted yesterday 
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random123
Posts: 2

Is it safe to delete files in: C:\Windows\winsxs\Backup (~542 MB)?

Posted 6 years ago
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ScottW
Posts: 6609

Nope. Those files are used for running programs with different levels of system compatibility. The winsxs directory stores copies of system files, including ones that are downlevel but are still use by some applications or parts of the operating system. These are system files, which are considered to be part of the OS so deleting those files is like deleting files in C:\Windows\system32 -- not safe, and eventually disastrous. Here is some further reading but it's pretty dry stuff! The last one shows what can happen if you do delete from there.

http://blogs.technet.com/askco.....large.aspx
http://blog.tiensivu.com/aaron.....32008.html
http://blogs.msdn.com/jmanning.....insxs.aspx

Posted 6 years ago
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random123
Posts: 2

Thanks ScottW :D

Posted 6 years ago
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Deichi
Posts: 1

http://answers.microsoft.com/e.....6bf4e22ccf

"In Vista, 'Windows File Protection' has been replaced with 'Windows Resource Protection' which, essentially performs the same function. The 'dllcache' folder no longer exists in Vista, it has been replaced with the

%systemroot%\Winsxs\Backup folder. This folder is NOT 'a backup of a backup', it exists only to make sure that files required for Vista to boot and operate are protected."

Posted 4 years ago
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vistamike
Posts: 10945

Deichi, hi. This topic is two years old!

Posted 4 years ago
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