WINXP PRO SP2 [all patches current]
In a nutshell, I believe that my issue is related to the problem described here, with SPTD.sys and a registry setting:
I recall recently deleting a file with this similar name: SPTD9885.SYS from my system.
Things were running fine for several days. However, tonight I simply restarted my machine and now I am unable to boot into XP either normally or in Safe Mode, no success under any profiles.
The behavior is one I have never encountered before: The login screen appears normally in all modes, I can attempt to log in under all profiles, but once the process begins and before the START bar or desktop icons appear, the machine immediately initiates a LOGOFF/SHUTDOWN. The last message I see is CLOSING NETWORK CONNECTIONS and I am thrown back into the login/profiles screen.
- There is no blue screen error.
- This infinite loop occurs in all boot modes.
- Done an inplace REPAIR INSTALLATION with no results - I still cannot complete the XP bootup sequence after login.
- I do not have Recovery Console installed [and in fact have been unable to install it - so I could use help with this as well in case this could be productive].
I have reason to believe that this may be the cause of my problems as the SPTD.sys file described is installed on my system [I do believe I have Daemon tools installed, though I never really use it].
I have been able to successfully rename the SPTD.SYS file in c:\window\system32\ to SPTD.OLD but I suspect the registry entries are still causing my issues as the inability to complete bootup persists.
Formatting the machine is not an option - using XP CD I can see my data/partitions/disks are fine. CHKDSK /R has been successfully run with no errors.
I am unclear how to access the registry to locate and delete the entries [or even to attempt] the steps in either of the possible solutions above.
Can someone please assist me with step-by-step instructions on how to access my registry from outside of XP so I can try and find and remove any of the offending entries?
Or am I going about this completely wrong and there are other options to explore?
Desperately need help/advice.
EDIT: I forgot to add that one of the first things I already attempted was to use F8 and select Last Known Good Configuration to try and enter XP. The result is the same as I described above.
Edited by lestatar, 31 August 2010 - 09:08 AM.