Problem moving and deleting files

i run windows xp home and some times i have problems. AND i’m sure many have had this same problem. There is no virus or spyware on my computer. its just anyother lame *** windows stuff up.

for example when your using a file you can’t move it or delete it, you get a message “you cannot move this file bahaha… close all programs using this etc abbababa”

the gay thing about windows is that even when you close the programs running it you can’t move it. whats up with this? MOST times i just restart my computer and its ok by i have this really annoying folder, i installed McAfee VirusScan Professional Edition 7.00 once and uninstalled it, now the folder is just starting there and i can;t it get of it! its been months!

Is there a way to get rid of this annoying problems? is there a way to end whatever is using a file without restarting? YES i have defragged my computer and a dick clean up.