Hey guys I'm getting no signal from my monitor trying to upgrade windows 7 to 10. It downloads, installs and reboots, but upon startup monitor just blanks out into no signal. I have a pretty old system with a 5770 gpu, is this the issue? Do I need to update drivers or something before installing windows 10? The only thing I can do is turn off and on my power supply and reboot it. It then reverts back to windows 7 since update failed. Please help!