Home Forums Tech Helproom My monitor is black screening Forum Rules | Contact Forum Editor | Report a Post My monitor is black screening Bronzi 13:10 21 Jun 2018 Locked Answered My monitor goes completely black, apart from this small box in the upper left corner (approx 1mm x 5mm), when I start up my pc. I've changed the monitor, the cables and restarted the pc but no change. Anybody know a fix? Fruit Bat /\0/\ 13:27 21 Jun 2018 Answer I've changed the monitor, the cables and restarted the pc but no change. So a PC problem then have you tried plugging into onboard graphics if you have them? Bronzi 18:36 21 Jun 2018 Thanks for your response but it turns out it was a software error with a Windows 10 update. I just removed the Ethernet and it booted up fine. Thanks anyway mate � This thread is now locked and can not be replied to.