Won't Boot up/Fans Won't slow down

Hello,

Yesterday I shut down my computer but after 5 minutes I decided to turn it back on. During booting up I see an irregular black screen files that were copying or updating so I thought it was a virus for a second so I turned it off. After I turn it on back again now it would boot up to the windows loading bar then for a second a blue screen and it would restart and do all over again. I have read some things online and I decided that my ram could be the problem so I took all of them out and put 1 by 1 back. Now the issue is that when I turn my computer on all the fans go crazy fast but it wont slow down at all and also it won't show anything on the monitor.

Maybe this information could help why I started with a problem from the start. I decided to Install counter strike but I didn't have enough space on my hard drive. Could not find anything to delete but I saw files from Windows then Windows.old and windows.old000 or something like that so I deleted them (windows old and windowsold000). The computer worked fine but I guess some files were deleted and maybe when I restarted the computer wanted to recover the missing files.

I'm confused but hopefully I did not confuse you as well.

Any help would much appreciate !