Grimefighter has completely blocked my PC

How can I get Grimefighter removed from my PC? I have waited all day for Avast to do something and just keep being sent useless information. I cannot boot my PC - I am unable to get past the Grimefighter screen upon starting it. Help!

Run GrimeFighter again and have it undo the changes it made.

Thank you but I can’t get into my PC to do anything - as soon as i switch on the PC Grimefighter kicks in, goes through several stages of the process and then tells me it needs to abort and that I need to shutdown or reboot and on taking either of these actions nothing changes - it just starts up all over again.

Is there an ‘F’ key I can start to just restore the PC to the factory settings?

Thanks.

Is there an 'F' key I can start to just restore the PC to the factory settings?
Factory restore is usually F11

I suggest you contact your computer manufacturers website and see if you can get the information from there.