Disconnect the installation media and restart the PC after all the steps.

Now you can continue the same steps from iii) in the Safe mode section of “ If you can get to the Login screen”.

Select Advanced Options > Startup Settings > Restart.

On the next screen, select Troubleshoot.

If you’re not seeing this screen, your PC didn’t boot up from the bootable media you inserted, and check your PC manufacturer’s website for more info on how to boot from a secondary media.

On the Windows Setup screen, select Repair your computer option.

Boot your PC with the bootable disk/USB you got in the above step.

So you’re going to need either a Recovery Disk/USB or an Installation Disk/USB.

Since you can’t have the login screen, you can’t get into the Safe Mode directly.

Press Win Key + P → Press P again and hit Enter.

Try changing the projection mode by pressing Win Key + P and trying out different combinations.

Sometimes, changes in the drivers can cause the output to be transmitted to a different display port.

Try connecting your display to different available output ports.

Check connections to the external display.

If there are any, click End Process in the Processes tab and Disable them in the Services tab.

Check Processes and Services tabs for any instances of RunOnce.exe or RunOnce32.exe.

Microsoft also suggests disabling RunOnce processes and services, in order to fix this black screen issue.

Under Shutdown settings, disable Fast Startup.

Click Change settings that are currently unavailable.

Right click on it and click Uninstall.

Open the Device Manager and locate your Display Device.

Once your PC is started in Safe Mode, you can try either of the following options.

Press F5 to select Safe Mode with networking.

When your PC restarts, you’ll see a number of options.

On that screen, select Troubleshoot → Advanced Options → Startup settings → Restart Download Fliqlo Flip Clock (latest version) free for Windows 10 (64-bit and 32-bit) PC/laptop/tablet.

When your PC is restarted, you’ll be prompted to the recovery screen. Download Fliqlo Flip Clock for Windows 10 (64/32-bit) PC/laptop.

When you come to the login screen, Select the Power button while holding the Shift key.

It is better if you can detach additional hard disks when you’re doing this. Also this dialog can be called using clock context menu. This tray icon can be used to call clock configuration dialog. Tray icon color depends on operating system, in most cases it is black, but on Windows 10 and macOS with dark theme it is white.

Sometimes, additional hard disks can also cause this problem. When it starts, apart the clock itself, small tray icon appears (if system tray is available).

This way you can identify which device is problematic.

If you have several external devices plugged in, remove all and try plugging them in one at a time.

Windows 10 clock black