General discussion

Locked

Logon Failure

By F3rg13 ·
Get following error when attempting logon.
Winlogon.exe Application Error
"The instruction at '0x10001cfa' referenced memory at '0x1a80000'. The memory could not be read. Check OK to terminate the program. Check Cancel to debug."

The PC won't boot from CDROM and I can't get far enough into my profile to try anything else.
I tried going into debug mode but all I discovered was that the errant instruction was a move - mov a1, bytge ptr [esi]

Any suggestions?

This conversation is currently closed to new comments.

13 total posts (Page 1 of 2)   01 | 02   Next
| Thread display: Collapse - | Expand +

All Comments

Collapse -

by pctech In reply to Logon Failure

Hi,

This is usually caused by a bad memory address area of the ram module. Should you only have one ram module installed, replace it with a known good ram module that is compatable with your system and see if this solves your problem. Should you have more than ram module installed, reverse their installed positions and see if this solves the problem. If it does, replace the bad ram module or leave it out of the system.
You could also have a failing northbridge or a bad ram slot on the mnotherboard itself. I would check this if all of the ram tests OK.

I hope this helps you.

Collapse -

by F3rg13 In reply to

I have pulled, swapped, reseated everything I can get my fingers on ... no change.

Thanks.

Collapse -

by divyanshudutt In reply to Logon Failure

replace ur RAM & try !

Collapse -

by F3rg13 In reply to

See response to answer 1.... But thanks for your time.

Collapse -

by TechieRob In reply to Logon Failure

Definately a RAM issue. Either that or your mobo isn't happy. Try the ram stick in another slot. If that doesnt work, try a KNOWN working stick in the different slots. Inspect BIOS and jumper settings for your mobo, has CAS latency been bumped up or similar?? What changes have been made to the system before this happened? or did this randomly occur??


Either that, your mobo's fried.

Collapse -

by F3rg13 In reply to

Yep. Been there, done that. Got the T-shirt ... still looking. Thanks.

Collapse -

by pctech In reply to Logon Failure

Hmmm, I thought I had that one but, it appears you have thought along those lines as well. I still be thinking it be a ram prob. Try disabling the cache in the BIOS and let me if that resolves the issue. I'll keep trying if you will.

I hope this helps you.

Collapse -

by F3rg13 In reply to

Poster rated this answer.

Collapse -

by anamlupus In reply to Logon Failure

First, adjust the bios to boot from cd.
If that has been done and it wont boot from cd set it to boot from a floppy and get a 98 boot floppy and boot from there. Then you can use your xp cd to reinstall the os over the top of itself. This should fix the ntldr.dll file long enough to get to your files, if you need to save the files this should help enough to get you to your files and then you can fdisk format and reinstall.

Hope this helps.

Collapse -

by F3rg13 In reply to

Poster rated this answer.

Back to Windows Forum
13 total posts (Page 1 of 2)   01 | 02   Next

Related Discussions

Related Forums