Its not my computer so I can't tell what is in the computer and what is has. But it is a Windows XP media center audition 2005 um.. HPpavilion a151On... well actually I see a sticker on the computer. I think this is whats in it: Processor amd athion 64 processors 3800+ with enchanced virus protection. memory 1024mb, graphics nvidia geforce 6150 LE, 200gb harddrive and opitcal drive: dvd+rw lightscribe, double layer 16x drive. Okay so my computer was installing ccleaner but it froze so i turned it off. Well really it didn't freeze since i could move my mouse and a program i click close on closed like 3 minutes after. But anyways i turned it off with the power button in the front, then turn it back on. It gets to the green progress bar then goes black. It never gets to the welcome screen. It has an active cursor but I cant do anything! same thing with all the safe mode things (command prompt, networking and regular) even the start with settings before doesnt work! Still a black screen with active cursor. Only thing it permits me to do is a PC recovery but I don't want to, because I don't want to lose my files. What can I do? Do I have to take it to a computer shop?