Hardware Thread, Odd XP problem in Technical; My mate! has just dropped off another duff computer. It immediaely reboots when logging on but ok in safe mode. ...
5th December 2010, 10:23 AM #1
Odd XP problem
My mate! has just dropped off another duff computer. It immediaely reboots when logging on but ok in safe mode. He didn't bring his XP disk. I tried using mine to get into repair mode but as soon as I press R, it reboots. I suspect the graphics card but we are off to visit mother in law, so I won't get to look at it today. I just don't understand why it's ok in safe mode but won't run repair.
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5th December 2010, 11:34 AM #2
Can you get into BIOS and disable it, you'll need to add an external one for testing though.
Could be anything, drivers, hardware etc. but if it wont stay on long enough to check...
You could do a chkdsk /repair or whatever the option is and leave it while you're off. repairs file errors. i always preferred booting to a win98 boot disk and doing a scandisk /repair as that fixed bad sectors properly.
whilst in safe mode, there are some system file fixers you can do i think , like a repair / check.
maybe you need the original disk.
Other option would be to whack the hdd as a slave to another machine and give it a thorough going over, anti virus / spyware, etc. also worth backing up the files if any. then tell him to buy another cheapo box, as the time you spend on it, and if you were to charge will rack up close to a new PC quick enough.
5th December 2010, 12:06 PM #3
Build yourself a UBCD (Ultimate Boot CD) for windows...
This gives you a Windows boot disk like a Linux live disk and it has loads of tools to diagnose faults...
There is a Linux version too that will fix a lot of faults too...
5th December 2010, 12:19 PM #4
log into safe mode and open the registry
check HKLM\Software\Microsoft\Windows NT\CurrentVersion\Winlogon
check that the shell key is pointing to explorer.exe and userinit points to C:\windows\system32\userinit.exe
if all correct then you may need to rename the old userinit and copy one from a machine that works
i have had this before with a dodgy userinit file - although i don't think it was restarting just logging back out.
Last edited by glennda; 5th December 2010 at 12:21 PM.
5th December 2010, 02:12 PM #5
oh yeah, go into debug mode and see where it hangs, that could indicate the system file that is dodgy, and then you could use safe mode or a boot cd to repair/replace the file.
5th December 2010, 03:01 PM #6
How do you do that then ?
Originally Posted by vikpaw
5th December 2010, 08:10 PM #7
I have to say that I have started to do this with many problems and it works a treat - often after a good checking over etc it works fine
Originally Posted by vikpaw
5th December 2010, 09:36 PM #8
I was thinking of one of the F8 on bootup options that shows you step by step bootup, if it hangs on a file that can indicate a problem - sometimes. I remember having a few machines that always lagged on mup.sys and a few on another file. So glad I have less of those "mates" now, it can kill a weekend and you never know what mates rates to charge!
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