There are many ways to enter safe mode on Windows 10. Since it's impossible to see the
screen it narrows it down a little bit. I still found a few ways we can enter safe mode. One
way is to interrupt the normal boot process. To do that when windows first starts up press
the power button for a few seconds three times. After the third time Windows will then
enter Automatic repair mode. It will then start an automatic diagnoses of the PC. After the
diagnoses the Automatic repair window will show up. You then select advanced options.
On the next screen select troubleshoot. ON the troubleshoot screen click advanced options
again. On the Advanced Options screen select Startup Settings. If you do not see the
Startup settings click See more options. On the Startup Settings screen you can then select
restart. After restarting you can enter safe mode. It will give the option to enter safe mode,
safe mode with networking, and safe mode with command prompt. After researching ways
to enter safe mode with an unreadable screen I feel this is the best way.
There are several ways to enter Safe Mode one of the ways is to hold shift and restart.
Another way is to interrupt the start up of windows three times in a row. The third way is
to use a USB boot drive with windows on it or a CD. A fourth way is to use the system
configuration tool, but this probably wouldn't work in this situation. These are the most
basic ways of getting into Safe Mode. I would also show my friend how to do each of these
so that in the future should he do this he knows how to fix it. I am sure we have all run into
a point where we change a setting or install something that messes with our system, but
there are so many ways of troubleshooting these issues. I know that in older versions of
Windows you could also use shift+F8 this however doesn't work in Windows 10, also it
doesn't work with SSDs as well. These are the ways that I would go about fixing this issue
in particular.
In order to boot windows in safe mode you will need to enter windows recovery mode here
is the step by step process to enter windows recovery mode as provided by Microsoft.com
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.
From here you will select Troubleshoot > Advanced options > Startup Settings > Restart.
After rebooting, safe mode will be enabled by pressing F5
In theory safe mode should restore the default display settings and the user would be able to
reboot normally, and the issue would be resolved. Alternatively the user can access the
display settings on windows through Control panel > Appearance and Personalization >
Ease of access center.
To begin booting Windows 10 in Safe Mode I would suggest pressing the restart button on
your computer, or if it does not have one, the power button twice. Because you cannot read
the screen, you should hold down the Windows logo button, ctrl, shift + b, all at the same
time to start Windows 10 Safe Mode. If you are working on a Windows 10 tablet try
increasing and decreasing the volume at the same time, 3 times, and it should do the same
thing. Then the screen will dim, or flutter, or beep, meaning that Windows OS is trying to
refresh. When windows is done refreshing, Safe Mode should appear on the screen with
default display settings and you should be able to change the display setting back to default.
Now would be a good time to press Start and go to Control Panel. From there, I would
click on Choose High Contrast Theme and check to see if one of these themes has been
selected. If one of these themes had been selected then I would go to Windows Default
Themes and choose one of the options it provides to revert to default settings.