PC Making random "alarm" sounds (loud)

[Bigglet]

Hi,

I've recently noticed a really anoying beep coming out of my speakers at random times. It starts beeping like some sort of alarm but when I turn my sound device off, it's gone.

It doesn't happen often, like once a day. I've checked my PC temperatures and nothing is anywhere close to high. (Highest being my GFX card at 50 degrees, CPU ~46)

I suspect it's some form of a malware infection that plays random sounds (rootkit maybe?) and I hope you can help me out here.

I have no idea how to start looking what it could be, other than a virus scan, but I don't have anything other than microsoft security essentials which reveals nada.

Any input is very welcome and appreciated!

Thanks in advance,

Bigglet

[fivealive]

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fivealive

[Bigglet]

Actually, never mind.

I've reset my PC everytime it happened, this time I was posting the message while it happened, then guild wars 2 crashed with an error saying it had to be stopped due to a sound loop error.

Problem solved!

[AdvancedSetup]

Great, thanks for the follow-up