Having problems with your PC Desktops ?
Turn Laptop on. It appears to boot, lights on etc... After a while, the computer shuts down and then tries to re-boot. This cycle repeats every 15 seconds until the computer is powered down. Works the same with power supply, or battery.
This mostly happens when you take a hard drive from another pc/laptop and put it another one of a different brand and boot it up, you get that same effect. If you did not do that, the first thing ill suggest you do is try reinstalling the Operating System. Or try to restore to an earlier state.
Repair Help & Product Troubleshooting for PC Desktops
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