Question Windows old and System Clean-up

Dec 19, 2019
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Hello, i updating my 1809 to 1903 and in C: disk i have Windows old. wich have 12 gigs and in system clean-up Windows updates 30 gigs is save to delete them?
 

mangaman

Reputable
Jun 13, 2015
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I'm guessing you mean the built in Disk Cleanup tool in Windows correct? If so then yes, it is safe.

Windows will find old updates and files in the prefetch that are no longer needed, and deletes them to save up room. As always, it is a good idea to backup any important information when going to a new build number in Windows 10. It rarely happens, but corrupted upgrades can happen.
 

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