cannot logon to xp pro! logs on after logoff

[luqman]

version: xp sp2
hp desktop

the sequence of problem!
> Logon Screen
> Logging On
> Loading personal settings
> Logging off
> Saving your settings
> Logon Screen again

the system was initially having AVAST antivirus running but yet the prevalence of Trojan malware.

I uninstalled the AVAST antivirus and replaced it with MCAFEE antivirus. I was running the MCAFEE system registry clean up when the system went off.
Upon restarting, the above sequence of problem begin.

How can I restore the system back without loosing any data as data in the volume is very important.
I need help!

[Monty007]

Have you tried to boot in safe mode? If you can back up all your important docs and load a system restore point prior to when you ran the reg scan.

[scouse]

If you cannot get into safe mode either then a repair may be the best option for you. i will see if i can find a better solution for you.

For now read this it could help you.

[scouse]

I should of said also that it does seem that you

have a virus, blasterworm comes to mind. If you cannot resolve this issue reinstall or a repair.

[luqman]

thank you all for your assistance, I was able to repair as adviced, the data are intact but unaccessible. most of the applications are not working. I am trying to carryout window update.

[scouse]

A repair usually works fine but it can go a bit wrong at times. What data are you unable to access? As for the apps they should work fine. You could uninstall those apps not working and reinstall them. Make sure to do a good reg clean after uninstalling apps.
Have you thought of saving any work to disc then wipe your drive and do a fresh clean install.
Once that is done and you have your XP running smooth once again with all software reinstalled you should then make an image (i use Acronis myself) and save the image to either a DVD disc or partitioned drive or slave drive if you have one. Once this is done no matter how bad your PC gets in the future it will take you no more than 10 minutes maximum to reinstall your image and your Computer will be back to perfect running order.
Here is what i do. I wipe my drive clean install XP then install all software i use get all updates installed then once this is done i then make an image save the image to my slave drive now say after a few months and my XP is running slow or a problem occurs i cannot fix all i do is install my backed image within 10 minutes and my computer is as fresh as the day i installed XP.