Computer Freezes And All Programs Are Not Responding?

My laptop screen was broken by being steped on over a year ago. It worked through my tv though with HDMI connection. Out of no where it stopped projecting image to my tv even though when I unpluged or pluged in the cable it would make noise and the screen would flash. This was in august. So I stopped using it and let the battery completely die and sit there dead as this corrected other problems in the past (such as a nasty pop up virus. So I found and RGB-PC cable and have hooked it up to my TV that way.Well now that I can see the screen I have tried to use it and it is constantly freezing every program it uses and will last for a long time including task manager. It has rendered the computer un-usable. I have run a virus scan, disk clean and defrag and it still won't work. I also checked the event viewer and the system log wouldn't open. So I saved and cleared it as per advice on this site. Still the same.

NOTE: When HDMI crashed the computer was turned off using the power button a few times as I could not see anything. Also on one of the boot ups when this problem started to occur and instead of the regular safe mode screen option coming up the other screen came up (something about doing a scan and fixing it) and I guess it timed out or I hit no or something but windows just booted up and haven't been able to use the laptop properlky since. Not sure if its related but figured it was worth mentioning