Firstly i would just like to point out that im not a novice with computers due to it being my career but i feel this great forum is my last hope before i sell this laptop for Spares and Repairs, ill start from the beginning.
The laptop is an Acer Aspire 5535 and it has Windows Vista Home Premium 32bit OS installed upon it, well last night i was simply on the laptop searching the web, not doing a great deal just some eBaying and general web searching, then i got a UAC alert and it said "Windows Command Processor" instantly i had never seen this UAC command before in my life so i thought to myself "Hmm this is clearly a type of malware/virus" so i clicked cancel on the UAC, then it appeared again and again and again, no matter how many times i clicked cancel it appeared again, then my AVG Anti Virus detected a Virus and kept saying it was moved to the vault over and over, so i thought right i will boot my system down and reboot into Safe Mode and perform a malware scan, well as soon as i rebooted the system it shut down half way through of the "Loading Drivers and Files" screen during the start up of Safe Mode, i tried Safe Mode with Networking and Command Prompt too, same problem, so i thought perhaps it has overheated, i left it 12 hours and tried again, still same problem, i then cleaned the CPU and HEatsink and reapplied thermal paste etc and still same problem, so i removed the harddrive from the laptop to check if it was due to that, it boots up and then crashes after 30 seconds.
You could read into this and think Hardware fault, but my question to that would be Why has it only just started happening? my laptop was fine until that "Windows Command Processor" UAC possible malware bug appeared?
Any help would be extremely appreciated
UPDATE: I am able to get the laptop to stay on only when ive removed both RAM chips from the motherboard, which is of course not that useful
it seems that when booted up the fan started really fast and is appearing to operate on full throttle, i have had an over heating problem before but this was solved with thermal paste and again ive replaced the thermal paste again on the CPU