Acer EN715-51W User Manual page 31

5. Click Change settings to let you choose the Data erasure options.
6. Select Data erasure Off if you are keeping your computer. This will
be quicker, but less secure. Files may still be recovered with a file
recovery program.
Select Data erasure On if you are not keeping your computer. This
process will take longer, but will be more secure.
Click Confirm then Next to continue.
Warning
Selecting "Data erasure On" will remove all of your personal files and
accounts, along with pre-existing drivers that may affect your Windows
installation.
7. Click Reset to continue.
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