my computer is stuck on the black screen. i was rebooting it to an eariler date.

Hello Jill,
Let's Recap the Issue: When you turned it off and on, you get only Black Screen.

I have some questions to better assist you:

• Can you please explain "Rebooting to an earlier date?
• What was last time working fine?
• Any changes/updates/.. recently?Possible Solutions:

#1 Press the Power Button for 10>20 Seconds until it's Completely Off
#2 Isolate the issue: Check Power Cables and Display Cable (HDMI, DisplayPort, ..) OR Try the Screen+Cable on another device.
#3 You can Refresh Display Adapter by pressing (WINDOWS KEY + CTRL + SHIFT + B).
#4 Try Boot to Safe Mode (Restart Device and Keep pressing F8).
#5 Connect Screen Cable to Other Port on your Computer.

If your Computer ON and shows the Boot logo and continue to boot to Windows but giving Black Screen at the End:
#1 Press Windows Key + R
#2 type: explorer.exe
#3 Note: It may take some time to load depending your device performance.

If the Above Steps: Didn't Work with you, Please share more details with screenshots (if Possible).