Acer A100 - Manual (Page 60)

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Changing language and text options
Set your location and language input preferences by opening the application
menu and going to Apps > Settings > Language & input.
Managing applications
You can allow programs from Unknown sources to be installed and Manage
applications.
Closing an application
To close an active application, go to Settings > Applications > Manage
applications. Tap the Running tab, then tap the program you wish to close.
Select Force stop to close the program.
Uninstalling an application
You can remove programs installed on your tablet to free up extra storage
memory. Tap and hold a program icon from the application menu and drag it
into the Uninstall area in the top-right corner.
Note: You cannot uninstall applications that were pre-loaded on your
tablet.
Alternatively, you can go to Apps > Settings and select Applications > Manage
applications. Tap the application you wish to uninstall, tap Uninstall and
confirm the uninstall.
Warning! You should only remove programs if you are familiar with the
Android operating system.
Updating your tablet’s operating system
Your tablet can download and install system updates, adding support for new
devices or expanding software options.
To check for updates, tap Apps > Settings > About tablet > System update >
Check now.
Note: Downloading new firmware can take up to 40 minutes, depending on
your network speed.
Resetting your tablet
You may have to perform a reset if your tablet fails to respond when buttons
are pressed or the screen is tapped.
To reset your tablet use a small thin object (such as a paperclip) to press the
recessed reset button.