What is this folder - - C:\Windows\winsxs??

What is this folder C:\Windows\winsxs??

It is over 4GB..!!!

I donno if i should delete or have it..because my disk space is going low now..had 30GB drive for Win7 and now got only 2GB Free..

and the above folder has contents as backup and some wierd names..etc



and a folder named Backup with contents,

and so on.....................

Is this a temp folder or something which downloads updates and saves here or is it creating any backup???

If you delete winsxs your operating system (Windows 7) will no longer work. This article is also applicable to Windows 7:

What is the WINSXS directory in Win2008 and Vista and why is it so large?


Here are some suggestions for freeing up disk space:


Or possibly you should buy a bigger hard drive.
MS-MVP - Elephant Boy Computers - Don't Panic!
Elephant Boy Computers - Don't Panic!

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Last updated November 13, 2020 Views 130,899 Applies to: