Could i do a sys restore back 2 days? Nothing changed other wise?

Do i go to device manager and uninstall that and it reboots and redetects?
Yes, you could try either of those things. Or you could use the CD with the drivers and install them over top of the current ones.

The file association is for playback/opening of those media files and would not have anything to do with the mic/soundcard/drivers/etc problem.

I can't see what extension is associated with Windows photo gallery but the default program for each extension is to the far right of the extension in the list. Whichever one is showing it's relationship with photo gallery isn't currently in view. I wouldn't start changing any of those around unless you have a specific reason.