Question: After the win10 system upgrade (to upgrade to the 1903 version), you can not delete the Windows.old folder is generated, suggesting that folder access is denied.
Click continue and can not be removed successfully.
Workaround: Use the windows built-in Disk Cleanup to delete.
1, on the C drive right property, select Disk Cleanup.
2, enter the Disk Cleanup tab, click Clean up system files button.
3, in the pop-up window, select the previous windows installation file, click the OK button in the dialog and click OK to confirm the information at all levels, cleanup work.
4, patiently waiting for liquidation can achieve the deletion of windows.old.
Finally, we hope this method useful.