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This started to happen few days ago: Every time I start up my computer, the global sound volume ("Playback") is set to muted (from the checkbox), in the sound control panel. So I have to open the control panel every time i start up my computer, and click that checkbox.

I have got this bug before, long time ago. I have no idea why is this happening.

Any ideas how to fix this or what is causing it?

I have SP 3 and most updates installed a half year ago or less.

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up vote 0 down vote accepted

This is a virus that came from flash security hole. using exe "stdrt.exe", downloading random youtube videos.

It can be removed somehow (search google), but I didnt bother trying, instead I just did reinstall which was probably faster anyways.

See: Why is my Windows XP not allowing me to turn on sounds?

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