Why does the Disk Cleanup tool’s Windows Update Cleanup take so long and consume so much CPU? If you ask the Disk Cleanup tool to clean up Windows Update files, you may find that it takes a long time and consumes a lot of CPU. … The Windows Update Cleanup option is doing more than just deleting files.

Is it OK to delete Windows Update Cleanup?

Windows Update Cleanup: When you install updates from Windows Update, Windows keeps older versions of the system files around. This allows you to uninstall the updates later. … This is safe to delete as long as your computer is working properly and you don’t plan on uninstalling any updates.

Does Disk Cleanup take a long time?

The thing with disk cleanup, is the things it cleans are usually LOTS of small files (internet cookies, temporary files, etc.). As such, it does a lot more writing to the disk than a lot of other things, and can take as much time as installing something new, due to the volume being written to disk.