Sunday, 26 April 2009

Vista Windows winsxs folder

Recently while preparing my desktop for a full OS backup I noticed the folder c:\windows\winsxs was 14.6GB (note I'm on vista64 bit this will become relevant later).

After some research I found this folder keeps copies of old .dll files for programs. Since I'm on x64 this means 32 bit and 64 bit dlls...that's a lot!

Now a way to shrink this is to run a file called VSP1CLN.exe (assuming you have vista service pack 1 installed). This removes the ability to uninstall Vista Service Pack 1 and cleans up some old files, it removed 2.6GB of files..not bad. Warning running this file will disable your ability to remove vista service pack one the only way to remove it will be to reinstall windows make sure you know what you're doin!

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