It will remove all the data ,contacts and apps that you installed
At the beginning switch off your phone by holding the Power button.
Afterwards press and hold the Volume Down + Power key at the same time for a few seconds.
You can release held keys when you see the Bootloader Mode.
Then use Volume Down to select "Factory reset", and press Power button to confirm this option.
Well done! The hard reset has just been performed.
If the display is off, press the Power button to turn it back on.
Then from Main Menu go to Settings and tap Storage.
Afterwards choose Reset phone and select Erase all data.
Tap OK to begin the whole operation.
Success! The hard reset has just been performed.
HTC Desire VT Restore Factory Hard Reset Format Phone.So lets start the HTC Desire VT Restore Factory, HTC Desire VT Hard Reset.Turn Off the mobile phone for few mints.HTC Desire VT Remove Pattern Lock.
Hard Reset,Restart Problem,Restart Solution,Restore Factory,
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.