Is it safe to delete empty folders? How to handle folders that won't delete and how to restore accidentally deleted files

When organizing your computer, you may sometimes find empty folders that contain nothing. It seems like it would be fine to ...
Ars Technica

Can't empty Recycle Bin, "Cannot delete file: Cannot read from source file or disk."

I am trying to fix an HP Pavilion A610E, running WinXP SP3. The Recycle Bin icon on the desktop shows that there are files in it, and when I right-click it, it does give me the option to empty.
Ars Technica

XP: Cannot delete file

I have an MST3K movie file (avi) that I'm trying to delete, but every time it says that it's open or in use and it won't delete it. No programs I am running have it open, and this problem occurs right ...
The Windows Club

Can’t delete OneDrive files or folders on PC

If you can’t delete files on OneDrive, use the following methods to resolve the issue: If OneDrive is syncing files while you are trying to delete them, it will not work. To fix this, stop syncing, ...