This was a huge annoyance of mine for the longest time with Windows 10. 1080P laptop screen with external 4K monitor, everything on the 4K monitor was blurry du

This was a huge annoyance of mine for the longest time with Windows 10. 1080P laptop screen with external 4K monitor, everything on the 4K monitor was blurry due to scaling not working properly. Everything fine when just running the external monitor on its own. Anyway, to cut a long story short, they have finally fixed this in the latest update. No idea why it has taken them so long but it's a huge improvement.