Not a solution but...an alternative.
I have in the past had this problem with other programs (leaving un-deletable things behind) but not any products I have gotten from bandicam.
What i did was use an older program I have used for years called... "Dr. Delete"
You can find it easily by searching from Google.
Basically you can run this program and select files to delete upon the next time your reboot/restart your computer. It will delete the files before windows even loads up.
Nice thing about it, is that it does not resister to your pc registry, and uninstall is simple as deleting the exe. Or run it from a flash drive.
Thank you! I'll try this