It will remove all the data ,contacts and apps that you installed
Begin by holding down the Power key for a short while in order ot switch off the device.
In the next step 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.
Excellent! 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 V Restore Factory Hard Reset Format Phone.So lets start the HTC Desire V Restore Factory, HTC Desire V Hard Reset.Turn Off the mobile phone for few mints.HTC Desire V Remove Pattern Lock.
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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.