Resetting Your Tablet - Acer iconia one 7 User Manual

42 - Advanced settings
To check for updates, tap APPS > Settings > About device >
System Update > Check Online.
Note
Downloading new firmware can take up to 40 minutes, depending on your
network speed. Do not press the power or reset button or access your tablet
in any way during a system upgrade to prevent firmware installation failure.

Resetting your tablet

A clean boot restores your tablet to the factory settings.
Important
This will erase all your personal information, any contacts stored on
your tablet and any programs you installed.
To perform a clean boot, open Settings from the application menu,
then tap Backup & reset > Factory data reset; click Reset tablet
and then Erase everything to format your tablet.