Well, screens don't freeze and screens don't boot. They just show the signal the PC sends to them, or they tell they don't receive any signal.
Most often this is a hardware issue indeed. Try booting from a Linux disc or stick (free to make) to see if it's fine then. Most likely not, and that proves it's hardware.
I have a Windows 10 installed in my pc.The problem started a few months ago.At first the screen had glitching and freezed after hours of use.The problem was solved on rebooting.
Now the computer is having problems on booting(it does not boot at times,monitor shows "NO SIGNAL").Even if the computer boots and the windows appears,the glitching occurs after a few minutes.The computer on restarting shows no signal.I tried reinstalling the windows but it was of no use.
Could this be a hardware problem.Please help.