Factory Resetting - HTC Desire Quick Start Manual

15. Factory resetting

Need to start over? If you're passing your phone on to
someone else or just want a fresh start, you can factory
reset your phone. It's not a step to be taken lightly.
Factory resetting your phone will delete all your data,
including any applications you've downloaded and
installed. It returns the phone to the state it was in before
the first time you turned it on.
Be sure to back up any data that you want to keep before
you factory reset your phone.
Resetting the phone through settings
1. On the Home screen, press MENU, and then tap
Settings > SD & phone storage > Factory data reset.
. On the Factory data reset screen, tap Reset phone,
and then tap Erase everything.
Resetting the phone using phone buttons
1. With the phone turned off, press and hold the
VOLUME DOWN button, and then briefly press the
POWER button.
. Wait for the screen with the  Android images to
appear, and then release the VOLUME DOWN button.
. Press VOLUME DOWN to select CLEAR STORAGE,
and then press POWER.
. When asked to confirm, press VOLUME UP.
Factory resetting your phone does not delete the
contents in your microSD card.
Quick start guide