Compaq Presario 2710CA Start Up problems after virus attack!

Hello,
I am having great difficulty with my Presario 2710CA following a 'Windows Recovery' Virus attack.
After removal of the virus (I used the MalwareBytes Anti Malware for the clean up), I rebooted the machine as required but now getting the error message below:
We apologize for the inconvenience, but Windows did not start successfully. A recent hardware or software change might have caused this.
If your computer stopped responding, restarted unexpectedly, or was automatically shut down to protect your files and folders, choose Last Known Good Configuration to revert to the most recent settings that worked.
If a previous startup attempt was interrupted due to a power failure or because the Power or Reset button was pressed, if you aren’t sure what caused the problem, choose Start Windows Normally.
Safe Mode
Safe Mode with Networking
Safe Mode with Command Prompt
Last Known Good Configuration (your most recent settings that worked)
Start Windows Normally
Use the up and down arrow keys to move the highlight to your choice.
Seconds until Windows starts: 28
I have tried all the options listed above but nothing seem to work. It starts the process as normal, the Windows XP logo comes up and then it returns to the above screen. All options above result in the same process. Pressing F8 freezes the process.
I am desperate to get my laptop back as it has been a great asset. I run a small business from home and all my accounting data and business information is held in this computer.
For anyone interested, I also have Norton Antivirus on the laptop but it didn't detect or remove the malware.
I do not have the Quick Restore CD with me and the leaflet that came with the laptop says contact Compaq at:
www:compaqordercenter.com/freeQR but this url no longer seems to work.
I am not even sure whether it is a hard disk problem or Windows XP problem (or something else). My primary concern is to get the data held in the laptop back and therefore do not want to erase that by restoring to factory set up.
Can someone please please help me?
Thanks in advance.

Sounds like a nasty rootkit, my advice is to boot from an Ubuntu CD and back up your critical data to an external hard drive and then do a clean install or factory restore of XP.
http://www.howtogeek.com/howto/windows-vista/use-ubuntu-live-cd-to-backup-files-from-your-dead-windo...

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