Add instructions for uninstall

[felixblaschke]

I tried to uninstall the driver but it failed because the INF is in use.

I came up with a solution without using the safe mode.

I figured out the driver name via pnputil /enum-drivers

Then I went into to admin termins (right click on start menu -> Terminal (Administrator)) and entered
pnputil /delete-driver oem45.inf /force /uninstall which uninstalled it for me