@Nex,
I've managed to sort it, thank you for your help.
I think it was the forged alliance exe file within the "C:\ProgramData\FAForever\bin" location, I went into properties there and allowed all permissions for all users (I think it was the user with my email as opposed to my laptop login user).
I tried allowing all permissions for all users on the FAForever folder before this but it didn't seem to work.
I had to clear the gamedata folder again too.