It will remove all the data ,contacts and apps that you installed
Turn off the device.
Press and hold the Volume Down button and the Power button and wait for the screen with three Android images to appear.
Release the Volume Down button.
Press Volume Down button to Select Factory Reset or Clear Storage and press the Power button to select.
NOTE: A message displays: This will delete all user data.
Press Volume Up button to Clear Storage.
HTC Inspire 4G PD98120 Restore Factory Hard Reset Format Phone.So lets start the HTC Inspire 4G PD98120 Restore Factory, HTC Inspire 4G PD98120 Hard Reset.Turn Off the mobile phone for few mints.HTC Inspire 4G PD98120 Remove Pattern Lock.
Restore Hard reset will set your phone in origional factorry settings. It will remove all the data and apps that you installed. Your contacts will be removed and you have to add them again.