Windows 10: Undeletable Folder Icon in File Explorer

You could try a live version of Linux. It's an operation system that runs off of a flash drive or DVD. No files are written to your hard drive. Boot from the flash drive or DVD and delete any file you want. If you decide to try it, right click the file and choose
"Permanently Delete". Otherwise empty the Trash (Recycle Bin) before you shutdown.

I like Linux Mint because it's very similar to Windows 7. You will find it easy to use. I made one a few years ago and used it many times. It's also great if you have a system will not boot. You can use it to copy all your personal files to a flash drive or portable hard drive.

This is the guide I used to make mine.

How To Create A UEFI Bootable Linux Mint USB Drive

 

Thanks TrustMe. I've run out of available time to follow this up just now, but I'll keep your suggestion for a bit when time is a bit more free. Thanks.

 

Reinstalling -the program, not the OS, using Revo Pro to monitor. Then use Revo Pro to uninstall. That's what the reference was to in my post.

Or try deleting from outside Windows (use a boot disk - Kyhi's from the top of the Software and Apps section here.

But your posts as I said have suggested you might have a permissions problem and things are not being removed as they should.

 

I'll have a go with Revo Pro and/or my boot disk and will get back to you. Thanks

 

I tried installing and uninstalling Boxcryptor with Revo Pro, but unsuccessfully as the folder icon was still there. I ran OORegEdit and still found 116, down from the previous 128, Boxcryptor entries. The Delete button is still grayed out.

I then used my boot disk to start the PC. I found what I think was the Boxcryptor folder icon X and deleted it. On restarting the PC it then began to do a repair job before eventually starting Windows. And guess what?......... Yes……... The Boxcryptor folder icon was still there! (You have to give it 10 out of 10 for persistence!)

As I mentioned earlier I think it’s time for me to stop my efforts to get rid of this minor nuisance. I’m really out of time to get rid of something that I won’t lose sleep over. Thanks for your determined efforts on my behalf to solve it. I really do appreciate it.

 

I suggested you try repairing permissions. There seems to be some other underlying problem where you aren't able to modify registry entries. Anyway, good luck with it.