If your Windows PC does not boot, crashes, or you simply want to clean it up, you may be interested in restoring its factory settings. If you do not have the Windows CD/DVD to format, reinstall, and ...

Now, performing a factory reset to wipe and return an Android phone, tablet, or another Android device to default settings shouldn’t wipe the installed SIM card.

Press the "F1" key during the first boot screen. Navigate to the "Restore Factory Settings" option using the directional arrows on your keyboard. Highlight the option and press the "Enter" key.