OK, this thing quickly went from bad to MUUUUCCHHH worse.
I started with the majorgeeks utility that was recommended. It has a registry backup option, which I tried to use, but it gave me a bunch of errors (though it did write out some files to the directory I specfied - I’m not sure if they’re any good).
Next, I had that utility do it’s thing. It wanted to reboot at the end, but the reboot process was stalled by a window showing some kind of error message. Plus there’s some kind of long unfamiliar beep from the computer at that time. Ominous…
I manually rebooted. The PC booted up to desktop, but the 'net connection was still down. I think once during this time period I had a random hard freeze as I was going into control panel. But I putter around with a few things (testing some ping commands) and stuff generally seems ok, other than the broken 'net connection.
Anyways, I went in and looked for what the update had done. It appears the main update was security update 920342. I went to remove it, and it told me that it might make certain programs inoperable. The listbox listed what appeared to be every single program installed on the computer. I double checked on the MS support page, and it looks like 920342 is designed to address some networking type issue with Vista, and that it might break backwards compatibility (i.e. so it might be the cause of my networking problems, but shouldn’t really affect non-networking programs). So I go ahead and remove it.
Then, everything goes haywire. From that point on, the computer doesn’t like to boot correctly. Sometimes, at power up, it gives me 5 short beeps and doesn’t work. Sometimes it gives me 1 beep, and shows the text mode bootup stuff (drivers and such), but I never see the screen after it goes to graphics mode (but I DO still hear the Windows bootup friendly tone implying that the system itself has made it into Windows desktop even if I don’t see it). One time, it makes it to the first part of graphics mode (showing the windows logo and the loading bar), but does a hard freeze there. Keyboard response seems dead.
I try with both VGA and PCI out of my system - same results.
BTW, my network card was apparently on on-board NVidia thing. My video is a cheapie stand alone card.
I will proceed with trying to get a safe mode boot (but for that, I need keyboard control, which it appears I don’t have now), then perhaps trying to swap out the vid card.
I really don’t want to do a full Windows re-install, as that will likely require software reinstall and reconfic too, at the cost of a day or so. Plus, my HD is striped RAID, so swapping HDs around for backup and testing is hard. I think I am pretty well backed up (to CD/DVD) on the machine in question, but there are probably some things I would lose with a full wipe.
Any suggestions or expressions of sympathy are more than welcome…