Okay... Once I restarted, my screen had gone black and in the top left corner I saw "Sophos Scan and Clean". After a minute or so my laptop is now on the Dell loading screen. Should I be concerned?
Edit: Dell is now stating that Automatic Repair could not repair my PC...
Unfortunately the instructions do not work. bootrec /fixboot tells me access is denied and I do not have access to another computer to install windows onto. I am unable to reset my PC either