help my computer keeps freezing
I dont know why or what to do, but I bought a used laptop and it was working fine except I have three problems. first one is that the power cord is fidgety, meaning sometimes it shows that it is charging and other times it isnt despite being fully plugged in. The second thing is that the battery doesnt hold the charge longer than 45 minutes. Someone mentioned to me that the BIOS needed to get reset or something but I have no idea what that means or how to do it, other than it is something at the beginning of boot up. Lastly my laptop keeps freezing. I have not been doing anything complicated, three times in the past two days it has happened while I was surfing. I was only looking up stuff on the internet, not downloading or anything. Today when I was reading a page and went to scroll down all of the sudden it was just frozen. When it freezes I cant do anything at all. Hold control, alt, delete has no affect on it. I even opened the cd door and closed it with a cd in it hoping it would spark up something....nothing. The wireless switch that I can slide to shut off the wireless, when I switched it off, it still was lit like it was on. The only thing I could do is hold the power button in and finally restart it. My specs are: HP Pavilion Entertainment PC model dv9410us, AMD Turion 64 X2, NVIDIA graphics, broadcom wireless, windows vista home premium, 1GB memory, can anyone help me please