Windows 10: Pc powering on but monitor doesnt give signal

Hello I have a desktop pc with windows 10 cpu intel i5 6500 gpu sapphire rx 480 nitro 4gb mobo Gigabyte h170 hd3 ram 4+4 hyperx fury ddr4 psu coolermaster 650m! My problem is when I power on my pc after a night my monitor stays black and I have to restart it to work ! What is the problem ? A is there a solution ?

:)

 

Device manager, command promp (Admin), etc wont respond. Cant login as admin...How do I fix this?

Ok I will try doing this tonight. Thank you. I'm at work right now. I actually have shut the computer off a few times with the power button. This is because I use a Vizio TV as a monitor, sometimes when the pc goes to sleep and I wake it the signal doesnt
go to the monitor afterwards. I will have to get an actual pc monitor then..

 

Monitor says no signal after game install

I have just installed Micro Machines V4. It installed fine and then asked for a restart. I did this and at power up, my PC turned on but there was 'no signal' to the monitor. After it searches for the signals in the monitor settings, the monitor goes to
sleep. I use both a Mac and PC on the same monitor with a Sherwood switch box using HDMI ins and outs. My Mac is powering up fine with the monitor. No issue there. Just not with the PC. I have tried PC to monitor directly using the motherboard HDMI ports.
Have tried VGA from PC to monitor. Same result. Have tried DVI from PC to monitor. Same result. No signals from any.

My setup is ASROCK Z77 Extreme 4

16 Gigs of Ram

Samsung Evo 500G SSD(Boot Drive)

Intel 160G SSD(I installed the game on this drive)

(2) EVGA GEFORCE GTX 660 with SLI Bridge

HP 2711x monitor

Any help would be greatly appreciated. Thank you.