My computer has been running really slow and I was in the process of removing files before I would reformat the hard drive. Now before I could remove all my files I had to reboot several times because of freezing. Now my computer starts up and gets to windows logo screen then blue screen and then reboots. It then goes to the options screen with three different safe mode options, last known good configuration, start windows normally. I have tried all of these options and it just ends up rebooting and going to the options screen. I have even tried the advance options mode F8 and all end up with the same result. I have tried booting from the CD but it doesn't recognize it and just ignores the CD and reboots to the same scenario. What should I do now?