Monitor goes black and won't come back

It is Windows 10.
I have reverted my machine back to Windows 8.1 and its working perfectly.
As long as you haven't had Windows 10 on your machine for 30 days you can revert back to Windows 8.1.
First of all open Settings and click Update and Recovery

Now in Update and Recovery window click on Recovery option. This will open a list of 3 options on the right hand side. You need to look for "Go back to a previous version of Windows" option. To start the process, click Get Started button under this option. It will ask you to plug in your charger before allowing you to continue.
Make sure your battery is fully charged, because before you press the get started button you need to place the cursor over the button and plug in the charger.
Once the screen goes black press the keypad which should then click the button.
Wait a few seconds and then unplug the charger.
All being well the process will now continue without the charger plugged in.
Once you get to the restart screen it should be safe to plug in the charger and you should then still have a screen you can see.
Hope this helps.

remove power to your monitor; then remove the monitor's back cover and, front cover;
when you can see the circuit board check for a buldged can capacitor or, two; replace these by unslodering them and, resoldering the new ones in place digikey.com sells the capacitors (don't forget the position of the capicitors they go in only one way

are you getting a check signal cable message? any on screen instructions?

try the cable, if it works on another monitor, then sorry to say but your monitor is fried

Your monitor has a bad INVERTER, look on eBay.

Change to new monitor
Vitally

This Problem is Acer(s) Monitors. Though it is a nuisance one fix That has work for many is the Unplugging after it goes back to Good (viewable) screen.
I have hooked mine up to an inexpensive Power strip to make it easier for me and just turn off at time indicated above and Viola Simple is as Simple does :)

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Check your Power options in Windows.

right click on the desktop. select properties, Gop to the screen saver tab, click on the power button at the bottom right and check to see if its set to turn off or standby the monitor, turn this off.

Keep the screen saver on and set it for like ten minutes.

Also, on the monitor itself, it may have a sleep or power save option set as the default. check all the monitor settings on the actual moniotr itself.

Sorry to have to tell you this, but this is common in LCD monitors. The reason that it is going black when it boots is for one of two reasons. You either have a bad power supply that powers your LCD or your LCD's backlight is blown. These can be repaired or you can purchase a new one. But if it goes black 9 times out of 10 is because the backlight is bad. These can be repaired!

Try connecting the wires properly. try changing the VGA cable. i had the same problem my screen goes black some times and pink i changed the VGA cable it was absolutely fine!!!
What is VGA cable
VGA Cables Adapters Converters and Devices C2G

visit a computer mechanic for further trobleshooting