My computer suddenly shuts down when i was browsing.

[joshua_06]

My computer suddenly shuts down and i don't know what exactly happened, but i think i might have disabled my anti virus just before browsing the internet. And when i turn on my computer it loads only until the starting windows appear, after that it just restarts and boots again.

I have been using my computer for a long while now and this has only happened now. Please help me with my problem thanks much appreciated.

 

[Tradesman1]

Can you boot into safe mode - if so run a virus scan and a malware scan for starters