I bought a laptop and it had Vista. I installed Windows 7. Everything's been fine for a long time. I needed space on the Vista partition and deleted the files. Everything was fine until I tried to view my Event Viewer because the Stardock Impulse no longer worked, but the event viewer gave this error:
mmc could not create the snap-in
I did all this to put some of my music on the partition and hooked up my external hard drive...it would not mount. I tried some other external devices and they too no longer work.
I've run SFC /SCANNOW - no problems found.
I've uninstalled all .Net and reinstalled 1.1, 3.5, and 4.0, no change (1.1 SP1 wouldn't run, nor 2.0)
I've compared my system with another Windows 7 machine and not much difference in files. I'm at a loss now, and am ready to reinstall Windows 7, but don't want to reinstall my files and programs.
What surprises me is the variety of failures. I have MS Security and Norton's. I've NEVER had a virus (Thank the Lord) and nothing is detected. Any suggestions?