Have you tried completely uninstalling the integrated graphics driver and reinstalling it in safe mode?

Integrated 4000 and 5000 series graphics and Windows 10 don't get along real well, and the drivers have to be re done in safe mode if there is a problem..

I would run a driver wiper like the MajorGeek Display Driver Uninstaller in safe mode as well to make sure all the reg keys and control sets are removed.

Windows update will break the driver thinking it needs to update it to a newer one, which is easy to stop..

Before you do anything, set windows to not update (and break) any system driver, or it will just break it again by installing a Windows driver update....

Download every version of the driver from both Intel and Dell then progressively work from newest to oldest until it works. Start with the Dell ones.

It is a tedious process, and a royal pain, ask me how I know...

The older drivers have a better and more exposed graphics settings in Windows, incase your wondering where all the settings went. 

No clue why Intel nerfed the newer drivers, or why Microsoft started and continues to break opengl on older integrated gpus....

Hope this helps.

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