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#21
I'm happy to say the problem is fixed. I restored a C: drive image file that I made (using Macrium Reflect) on Dec. 8, and Windows sounds (e.g. Beep) now work as they used to. I'm almost certain that it was a Windows 7 update that I installed between then and about Dec. 20 that screwed things up. I won't know for sure until I reinstall the updates one by one and see if the problem reoccurs.
Thanks everyone for your help!
[P.S. To respond to Eric3742's query, yes by "Windows Restore" I did mean "System Restore Point". I've had occasion to do a system restore several times in the past, and find that sometimes they work, but often times they fail with the only explanation being "unknown error", so I don't rely on them. But that's another story...]
Last edited by coffent; 03 Jan 2017 at 11:35. Reason: typo
My guess was wrong. I've now installed all the Windows 7 updates and Windows sounds continue to work. I guess I'll never know what caused the problem, but at any rate it's fixed.
Go back and look at all your audio settings and make a note of what they are. This may help down the road.
Create a new backup and Restore point for a little insurance.
Jack