Acer Predator 15 User Manual page 26

26 - Recovery
keeping your computer. This process will take longer, but
will be more secure.
Warning
Selecting "Remove files and clean the drive" will remove all of
your personal files and accounts, along with pre-existing drivers
that may affect your Windows installation.
5. Click Reset to continue.
6.You will be shown the reset progress on the screen. The
screen will turn off during the reset process.
7.The screen will turn back on when it is installing Windows.
Your PC will restart several times during the reset process.
8.Follow the process until it completes.
9.When your PC has completed the reset process, Windows
will have been reset back to its factory default settings.