Why Does Windows 10 Disk Cleanup Take So Long?

And that’s the cost: You need to spend a lot of CPU time to do the compression, which is why the Windows Update Cleanup is using so much CPU time. And it’s doing the expensive data compression because it’s trying very hard to free up disk space. Because that’s presumably why you are running the Disk Cleanup tool.

How long should Disk Cleanup take Windows 10?

It will take about 1 and half hours to finish.

How do I speed up Disk Cleanup in Windows 10?

How to Do Disk Cleanup to Make Your Computer Run Faster

1. Step 1: In “File Explorer”, right-click on your “C” drive, then left-click on “Properties”.
2. Step 2: Click on “Disk Cleanup”
3. Step 3: Select all items under, “Files to delete”. …
4. Step 4: Delete the selected files.
5. Step 5: Click on, “OK”.