Reformat has three syllables.
You need to reformat your question.
By reformat I'll assume you mean reset. There should be an option to restore your phone to factory settings in your settings menu somewhere. If you mean completely flash the device, you will require a cable that you can purchase off eBay for a few dollars usually.
Yes, all data will be lost if you reformat your PC.
Yes you can.
Nokia 3120 Classic with memory card can reformat through PC. Just click Format.
Create a blank document.
Reformat hd. On the XMB go into the settings menu and you will find "Reformat hard drive".
t28tv duo my phone master reset
Reformat it.
B
If you mean to reformat the hard drive, you need to insert your copy of your operating system recovery CD and reboot the computer.