Trying to reload win95 to get back some apparently corrupted files caused my registry to end up indicating that I could reboot to a previous installation.
I discovered this by trying to create a Startup Disk and it couldn't find a couple of files including winboot.sys. I had never encountered that problem before. From here at EE and Bob's Trouble shooting page I determined I could copy IO.SYS to WINBOOT.SYS. I was able to create the Startup Disk, and the next time I booted I realized that the system thought that I had a previous OS version. I noticed references in IO.SYS of winboot.sys (if that means anything).
I want to get back to the point where my PC realizes that there are NO previous OS versions.
BTW, I ran regclean but it didn't help....at least not with this problem.