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View Full Version : Switching between accounts (administrator and limited levels) locks up XP's log ins.


ant
10-08-07, 11:57 AM
Hello,

Does anyone know why my Windows XP Pro. SP2 (all updates; IE6.0 SP2) hard locks up (HDD light and keyboard lights do not respond) when logging into an another old/existing account (not a brand new)? It doesn't matter if I log off the last account OR left the last account logged in.

The first incident: I was using my administrator-level account, idled until my screen saver came on, I accidently logged in with another account as a limited user, XP showed my desktop with its recycle bin, Start Menu, and default desktop. The hard lock up occurred. HDD light stopped blinking.

The second incident: I resetted my computer to reboot, I logged as in my limited account that locked up earlier, saw my desktop and had no lock ups, logged off, logged into my administrator-level account, locked up again, and saw corrupted gray screen with weird lines (no desktop at all).

I wonder if it is related to the latest NVIDIA driver for my EVGA GeForce 7950 GT KO (512 MB; PCIE)? Has anyone seen this issue before? I haven't had time to dig deeply to see what's up. Thank you in advance. :)

ant
10-09-07, 01:28 AM
Updates... Nothing in event logs and no created dump files that I saw. I think the hard lock ups didn't let XP have a chance to log things. I did three more quick testings:

1. Two administrator accounts (logged off one, logged in another). Lock up. This time, I got light blue screen with lines (not the infamous BSoD).
2. Disabled all startup in my local user accounts, Startup (common), HKLM/Run, HKCU/Run, and Run Once (nothing in there). These usually have RivaTV, PopTray, HP software, Creative stuff, NVIDIA stuff (e.g., nTune), IME, Tried administrator vs. limited. No help.
3. Logging off and logging in the same account had the same problem (gray background and black lines, then lost video signal!).

I think my next plans will be:
1. Try safe mode (not sure if it lets me logoff and log in with another account)
2. Uninstall NVIDIA drivers, retest. If it works, then reinstall.

ant
10-13-07, 10:00 PM
The issue seems to be resolved. It looked like an uninstall, reboot, and a reinstall (newer beta build too), and reboot fixed it. :)

Q
10-13-07, 10:21 PM
The issue seems to be resolved. It looked like an uninstall, reboot, and a reinstall (newer beta build too), and reboot fixed it. :)

Although none of us helped, I want to thank you for sharing the resolution.

ant
10-13-07, 10:41 PM
Although none of us helped, I want to thank you for sharing the resolution.NP. I think the problem was I never uninstalled the drivers between versions. I think the last time I installed cleanly was back in late December 2006.