Moved to Malware Discussion > Home User Assistance.
PC Tools is an antivirus and as such should never be run with another one, in this case VirusScan as that can actually cause a conflict and let infection in. According to the 2011 compatibility list it should be uninstalled.
What operating system and service pack is this and what version of Firefox? Also would you check the version number of Internet Explorer and let me know.
Try booting into 'Safe Mode with Networking' reached by tapping F8 repeatedly while booting up. That should give you Safe Mode with Internet access.
First go to Computer (My Computer in XP) right-click the hard drive and select 'Scan'. See if McAfee can remove the infection in that mode.
Then go to THIS page and download and install Stinger and Malwarebytes FREE (NOT the Pro version or a trial thereof). Run Stinger when back in regular mode later but do the following first.
Update Malwarebytes then run a full scan and see if it can't remove all the problems for you. It's a specialist tool that goes for the more unconventional malware that antivirus software has a hard time dealing with.
Hey Peter unfortunately I cannot boot up windows now I'm stuck in a cycle of booting up -> launch startup repair ->startup repair cannot fix problems
After reading The removal instructions here
Disable system restore will not allow me to restore via system recovery options now.
And the command prompt > bootrec/fixmbr gives me no instructions just says "the operation completed successfully"
I then restart and am in my cycle.
Please help - day 6 :(
Sounds like you need the help of a Windows forum. I'm not too expert on fixing boot issues I'm afraid.
What service pack is this and do you have a system disk which coiuld be used to repair/reinstall the system?
Service pack 1
Have a system disk tried repair but says windows cannot repair
I was able to boot up each time until I disabled system restore as suggested by mcafee
For this please use Malware bytes tool,it will easily remove your backdoor.