Hard Reset for HTC HD7
In our description database there are 2 solutions for performing hard reset for HTC HD7.
Choose the first method and follow the steps to perform a hard reset. If the first solution does not work, try the next method.
Please remember! Hard reset will delete any and all data your device contains; like pictures, contacts, messages, apps etc. Everything. HTC HD7 device will be brought back to the same configuration as that of a brand new device.
Instruction I:
1. Turn off the device.
2. Press, at the same time, the Volume Up, Volume Down and Power button. 
3. Release held buttons when instructions show on screen.
4. Follow said instructions. Voila.
Instruction II:
1. Turn on the device.
2. Starting at the Start screen, enter Menu.
3. Now go to Settings > About phone > Reset your phone > Yes.
4. Your phone will reset and restart. Done.