Hi. I'm David, and I'm happy to help you.
As far as I know, the menu that opens when you press F12 on a Dell doesn't take you to WinRE (Windows Recovery Environment), where you have a better chance of solving the problem. Therefore, try to repair the Windows startup by following the steps below.
In your case, to access the WinRE, you will repeatedly turn your device off and then on:
- Hold down the power button for 10 seconds to turn off your device (If the device is ON when starting the procedure);
- Press the power button again to turn on your device;
- On the first sign that Windows has started (for example, some devices display the manufacturer's logo with spinning dots when starting), hold down the power button for 10 seconds to turn off your device;
- Press the power button again to turn on your device;
- When Windows starts, hold down the power button for 10 seconds to turn off your device;
- Press the power button again to turn on your device. Windows should display the "Automatic Repair" screen.
- Then, select "Advanced options" to enter WinRE.
Article used as a reference for this procedure: https://support.microsoft.com/en-us/windows/windows-recovery-environment-0eb14733-6301-41cb-8d26-06a12b42770b
- On the Choose an option screen, select "Troubleshoot > Advanced options > Startup Repair / Quick machine recovery".
If it persists, use System Restore to get Windows to the point where it was working.
Start your computer again in the Windows Recovery Environment (WinRE).
- On the Choose an option screen, select "Troubleshoot > Advanced options > System Restore" and follow the on-screen instructions.
If you don't have restore points, try starting Windows in Safe Mode with Networking.
Start your computer again in the Windows Recovery Environment (WinRE).
- On the Choose an option screen, select "Troubleshoot > Advanced options > Startup Settings > Restart";
- After your device restarts, you'll see a list of options. Press 5 or F5 to start Windows in Safe Mode with Networking.
When starting Windows in Safe Mode, I suggest that you make a backup of your data.
Open Device Manager and make sure all drivers are up to date.
Then restart your PC and see if it starts normally.
If the problem persists, please let me know.
Feel free to ask back any questions.