In win11, the system will leave the Windows.old cache file due to updates and installations, which takes up a lot of memory. At this time, we can delete the Windows.old folder under win11 through disk cleanup.
The first step is to open “This PC”
The second step is to right-click “C” Disk", open "Properties"
The third step, click to open the "Disk Cleanup"
Step 4: Find "Previous Windows Installation" and click "OK" to delete it.
If we can’t find Windows.old here, it means there are no related files and no need to clean up.
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