Windows 7: WinsXs Folder::

Hello team,

I have a WinsXs folder that is using 25 percent of my drive.
What's this folder for and can it be cleaned up to release the space back to OS?
thx
John EsraeloDatabase / SQL DeveloperAsked:
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comfortjeaniusCommented:
The component store cannot reside on a volume other than the system volume because of the NTFS hard links. If you try to move the component store, this will result in the inability to correctly install Windows updates, service packs, roles, or features.

How to address disk space issues that are caused by a large Windows component store (WinSxS) directory
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tsaicoCommented:
It is the store that is needed in order to recover windows from a problem.  Generally speaking, no, you should not touch it.  Nothing will stop you, but if you run into a problem that "windows needs to recover" you will be unable to do so.  But you will also run into problems with updates, service packs, or service components and they will generally fail.

Here is a good blog on it
http://blogs.technet.com/b/joscon/archive/2010/08/06/should-you-delete-files-in-the-winsxs-directory-and-what-s-the-deal-with-vss.aspx

though you can try to compact it.
http://blogs.technet.com/b/askpfeplat/archive/2013/10/07/breaking-news-reduce-the-size-of-the-winsxs-directory-and-free-up-disk-space-with-a-new-update-for-windows-7-sp1-clients.aspx
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aadihCommented:
Its size is deceptive, as it's not an ordinary (normal) folder. Leave it alone. If you intend to wade into its secrets, please read the following article:

http://www.thewindowsclub.com/winsxs-folder-windows-7-8 >
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Seth SimmonsSr. Systems AdministratorCommented:
this article talks about that folder structure more and describes the disk cleanup features to help with it

http://support.microsoft.com/kb/2795190
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John EsraeloDatabase / SQL DeveloperAuthor Commented:
Thank you all 4 of you with the excellent information.
I have not delved into Windows 7 components and nuts-and-bolts so to speak.  

I got the message clearly that basically says.. "leave it alone man".. and I shall.
thx again team
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