All windows in Unity editor have gone black when opened?

Apologies if this is a common issue, everything I've found so far has been slightly different and their solutions haven't worked for me.

I recently went on holiday and after returning I've been getting this issue when opening any project in Unity, new or otherwise:

If I open other editor windows such as Preferences or the Module Manager, their contents are also completely black:

Anybody know what's up here? I've tried uninstalling and reinstalling several times. I've also installed the latest version of Unity, same problem. I've even deleted the appdata folders after uninstalling for a clean start.

I'm on Windows 10.

Thanks!