GrahamSandwich,
It all checks out, Intel HD Graphics 530... I'm not sure why your video controller is giving you a hard time. You tried to install Intel drivers and it doesn't work, I don't really get it.
Try an older version like this one here, you may have better luck: https://www.dell.com/support/home/us/en/04/Driv...
Doesn't work? On the same page, go to Other Versions, and try to install those too. Keep me posted.
Note: This is a non-Microsoft website. The page appears to be providing accurate, safe information. Watch out for ads on the site that may advertise products frequently classified as a PUP (Potentially Unwanted Products). Thoroughly research any product advertised on the site before you decide to download and install it.