Win7 restarts instead of shutting down

[NINaudio]

Hey everyone, long time no see!

I have this issue that cropped up where whenever I try to shutdown win7 it ends up restarting. It is not a new install. A list of what I've checked and tried so far:

I've doublechecked my wake-on-lan settings in the bios and device manager and they are disabled.

Do a diagnostic startup from msconfig and the issue still happens.

Shutdown from welcome screen before logging in and the issue still happens.

Run ad-aware and malware bytes, issue still here.

Any other ideas? I was thinking a stuck power switch, but that seems unlikely as I think it would make my machine just keep turning on and off.

Thanks!

[RacingKen]

Hello Nin, try this to check the problem. Right click on the task bar, choose properties, then click on the start menu tab. Check where it says what the power button does and see if it says restart or shut down, it needs to say shut down. I am hoping this is all the problem is anyway.....
Ken

[NINaudio]

Hey Ken,

I don't shut down with the power button, but through clicking start and then shutdown. =(

[Snafu]

Yes, but windows may think you want to restart unless the setting is at shut-down. Try it and see

[NINaudio]

Set as shutdown.

So, upon coming home from work I turned my pc on and it appeared to power cycle 5 or 6 times before it started to load the bios screen. Then it froze and I noticed that the fan on my psu was very dim. A click of the reset button and it started up normally. Do you think this could possibly be a psu issue?

[ol'norton]

Did you try pulling your Cmos battery & clearing the Cmos, that sometimes fixes that.

[NINaudio]

Replaced the PSU with a 700w one that I still had and the shutdown issue is gone. As is the weird power cycling it was doing before.

I got a good scare though, I didn't have one of my raided HDD's cables fully seated and was told it had failed. It was only a year old, but that is all good now too after reseating the cables.

[RacingKen]

I am gladd you got it fixed Nin!

As for using the power button to shut down your PC, if you set (what the power button does) to (shutdown), it will shut your PC down the same way as going through the start menu. It does a proper shutdown.