Windows 7: WHY is it open in another program

OFTEN when I am working with windowz explorer I get a message that the selected action can't be performed because the folder/file is open in another program. RARELY is that the case. So what it the problem?



Delete, move, are the actions -- and i have no idea why the previous text is blue.

When that happens, go to alt + cntrl +_delete to get task manager. In the task manager you wil seem many process, that are running. Close them down one at a time. Each time try to delete the folder. When it is actually deleted we will know where the problem lies, if you come back, someone will be able to help you.

Try Process Monitor and Process Explorer too.

OK thx, time to go to the firefox forum.