If you are experiencing problems with your HTC Dream smartphone and want to wipe the entire device clean of data, you will need to perform a hard or factory reset. Here’s how:
1. Press Home.
2. Select Menu.
3. Tap Settings.
4. Tap SD card & phone storage.
5. Under the Internal phone storage section, tap Factory data reset.
6. Tap Reset phone.
The phone will then perform the factory reset.