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Windows Updates Folders (With Strange Names) in C drive

I don't know what are they and if it's ok to delete them. These are the folders:

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These are the files that each of the folders contains:

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marked as duplicate by Nifle, Mehper C. Palavuzlar, grawity, Diago Sep 5 '10 at 9:01

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2 Answers 2

up vote 1 down vote accepted

edit: as per comments below, these are of course temp files, not rollback files as I incorrectly stated WRONG: These files are kept in case you want to roll back a windows update. Depending on how likely it is that you would ever want to do that and how old these files already are, you could probably bin them.

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Rollback information is stored in %SystemRoot%\$NtUninstallKB<id>$. These are just temp files. –  grawity Sep 4 '10 at 14:07
    
Since Windows 98 that kind of strange folders are created in drive root... –  kokbira Mar 21 '11 at 11:59

Those folders are where Windows Updates are unpacked before installation. Usually they are removed automatically, but if they aren't - reboot (to make sure) and delete them yourself.

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