I've been using crap cleaner free for quite awhile with no issues, I recently bought professional and I install and run it ok but after I close it out I can't open it again. I get an error that says "Windows can't access specified device, path, or file. You may not have appropriate permission to access the item." I get the message when I try to run it from the desktop shortcut and taskbar shortcut, when I try from the start menu nothing happens not even the error message. I run windows 10 and have Avast free edition. If I remember correctly this may even have happened with the free edition. Thanks for any help.