Fix Error 0x80070091 When Deleting Files in Windows 10

[Batu69]

So I was messing around with some Android files in my Windows 10 computer and was using Cygwin to run some commands. Later on when I wanted to delete some folders, Windows refused to delete them giving “Error 0x80070091: The directory is not empty”. I checked the user ownership to the folder and I had all the permissions, but still it refused to delete the folder. Finally, I figured out the reason behind this deadlock – the chmod command from Cygwin had changed the folder permissions. So the only solution is to revert the permissions back using the same chmod command.

Here are a few things you can do to fix the error 0x80070091 in Windows 10:

Check the disk for errors