Computer keeps freezing

Hi everyone
I have a problem with my new computer windows 8.1 64bit
The computer keeps freezing on me and it restarts all time. Please help.
Answer #1
That’s not enough information for anybody to really be able to help you
What are the specs?
Do you get any blue screens before restarts?
Have you scanned for viruses?
Answer #2
yea more info; is this a new install on old PC?
Answer #3
If the computer stops before BIOS/UEFI screen then it will be a problem. If the computer restart when Windows starts then there are plenty of ways we could solve the problem…
You will nearly surely need a Windows installation disc/usb support. I will wait you posting more info to correctly address the problem. In the meantime download a Windows’ iso and burn it or use rufus with an usb drive.