There are two ways to shut down the machine without holding the power button safely—
the first way to use the Control+Alt+Delete key combo to bring up the options menu. The
options menu should use windows default color options bypassing any custom changes.
From there, you can select shutdown. Once the system has powered, do you can press the
power button like normal and tape the F8 key on the keyboard to select the Safe Mode
option that is desired.Alternately you can type in the blind and use command prompts to
reboot into safe mode. To launch the command console, press the Windows key + R on the
keyboard. Wait two seconds and type ”cmd” this will launch the command prompt. In the
command prompt that you can not see type in ” bcdedit /set {current} safeboot network”
press the enter key now type in “shutdown /r” if everything worked, the computer would
reboot into safe mode after one minute. Once you make the changes to the graphics settings
and then open the command prompt again by using the Windows+ R and typing “cmd”
again, then enter “bcdedit /deletevalue {current} safeboot” to allow the system to reboot
into normal mode on the next restart. Then in the command prompt type in shutdown /r to
reboot back into normal mode.I pulled my research on booting a PC in safe mode directly
from Microsoft's support page. Since this customer changed the display settings and is
unable to read the screen then booting Windows into safe mode via a black or black screen
will be the best option here. To perform this action we will have to:
1. Hold down the power button for 10 seconds to turn off your device.
2. Press the power button again to turn on your device.
3. On the first sign that Windows has started (for example, some devices show the
manufacturer’s logo when restarting) hold down the power button for 10 seconds to
turn off your device.
4. Press the power button again to turn on your device.
5. When Windows restarts, hold down the power button for 10 seconds to turn off your
device.
6. Press the power button again to turn on your device.
7. Allow your device to fully restart. You will enter winRE.
Once we have entered winRE (Windows Recovery Environment) we need to choose
options to Troubleshoot > Advanced options > Startup Settings > Restart. After device
restarts there will be a list of options and we can select option 5 or press F5 for safe mode
with networking.Now this seems to be the only way to boot when windows is unable to be
seen in a situation like this. But when we may be experiencing issues with a PC we can
boot in safe mode from the settings or the sign on screen to help us diagnose if problems
are from a corrupted OS file. Example: computer is booting slow and we decide to boot in
safe mode to see if problem still happens. If it does we know its an OS issue because Safe
mode boots with basic drivers; However, if we boot and the problem isn't there anymore we
know that it could be something outside of the OS files.
References
Start your PC in safe mode in Windows 10(2019). Retrieved from
https://support.microsoft.com/en-us/help/12376/windows-10-start-your-pc-in-safe-mode
