Select "previous Windows installation(s)" to clear up old Windows installation files, and "Windows Update Cleanup" to remove old files that are no longer required. While you may check them all, it is suggested to only check the items that you know you don't need anymore. Select the main drive again, and click ok.Įach entry is listed with the disk space it occupies currently.Click on "clean up system files" when the Disk Cleanup window pops up.This comes up only if more than one drive letter is used by storage devices. Select the main drive (c usually), and click ok.Confirm the UAC prompt that is displayed.Tap on the Windows-key, type Disk Cleanup and hit enter.
It is suggested to use the operating system for a time before running these clean up operations. Note: if you remove old Windows installation files or old updates, you have no option to go back anymore. Updates cleanup refers to removing outdated update files that are no longer required. Windows keeps these around as well and does not remove them.
#Windows cleanup utility windows 10 no third party install#
When you install updates, old updates or files may become useless as they are replaced by new files. This copy may take up more than ten Gigabyte of storage space. This is done to give you the option to restore the old version should you run into issues or are dissatisfied with the new version of Windows. When you upgrade Windows to a new version, a copy of the old version is kept for a period of time.
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