1) Create a Restore Point using System Restore
2) Create a Repair disc:
- Go to Start...All Programs...Maintenance...Create a System Repair Disc
- Press "WIN" and "R" to open the Run dialog...type "RECDISC" (without the quotes) and press ENTER
3) Test the System Repair disc to make sure that you can get to the System Restore entry when you boot from the disk (you may also want to try actually using System Restore to make sure that it works)
4) Download this free program (Autoruns for Windows
) and use it to disable any instances of trufos
.sys that are starting (or any other BItDefender entries) (DO NOT DELETE - only disable by removing the checkmark in the left hand column)
5) Check in Device Manager (to include showing hidden devices from the View menu item) and ensure that any instances of trufos
.sys (or any other BitDefender entries) are "Uninstalled" (DO NOT DISABLE THESE).
6) Check in the Services applet (services.msc) to be sure any instances of trufos
.sys or any other BitDefender entries are disabled.
7) Go to C:\Windows\System32\drivers and rename the trufos
.sys driver to trufos
In the event that the system doesn't boot:
1) Boot from the System Repair disc and use the Command Prompt option to rename trufos
.BAD to trufos
2) Boot from the System Repair disc and use the System Restore option to restore the system to a point before the changes were made.