Windows 7 - Restarting instead of shutting down!

[CaptainRAVE]

Can anyone help?

All of a sudden my computer has started restarting instead of shutting down. It powers off for a few seconds, as if it has shut down, but then boots back up! I have tried a couple of fixes -

- changing a reg key as suggested by a random Google search
- performing a start-up repair
- Checking all devices in my bios are set not to wake the computer up (same with USB devices in device manager).

I have also suddenly received a USB error that a device has malfunctioned and that windows cannot recognise it (strange since all my USB devices are working fine!).

Virus scan next I think.

Any other suggestions?

 

[linktoinsanity]

Have you tried unpluggin all your USB devices, then shutting it down? (I appreciate this may be hard re: Mouse and Keyboard.)

 

[CaptainRAVE]

Yep, that was the next thing I tried and that fixed the USB error.

Still have the computer powering itself back on - same thing happens when I put it to sleep too

 

[One]

Virus scan and malwarebytes fo sho.

 

[CaptainRAVE]

Virus scan and malwarebytes fo sho.

System restore did nothing, so this is the next plan ^^

 

[NutterzUK]

Linky

Seems on another forum some people had the same problem, 2 of them fixed it by clearing their CMOS

 

[Raumarik]

Only time I've seen this is a problem with the motherboard or PSU. I'd start with resetting the motherboard, upgrading it if possible and checking for shorts, then I'd check the buttons on the case before trying a different PSU if you have one.

 

[CaptainRAVE]

Yep, good ideas. Will trying clearing the CMOS next.

 

[CaptainRAVE]

Clearing the CMOS worked

I decided to take out the battery for a little while. I had previously tried using the reset button, but clearly that wasn't sufficient. Thanks guys!

 

[NutterzUK]

Nice, glad that worked!