To get things ready you are going to want to open your machine up and give it a good dusting, and depending on how old it is, maybe replace the thermal paste.

Once your PC has been cleaned, plug it in and reset it to factory default settings. You can do this by hitting the Windows key and typing 'Reset' and hitting 'Get Started'.

If you are running Windows 7 or 8 then now would be a good time to upgrade to Windows 10 or 11.