It will remove all the data ,contacts and apps that you installed
Start by turning off the phone.
Then press the Power Button once.
Afterwards press and hold the Volume Down button.
Release held key when you see the exclamation point.
Press the following sequence of buttons: Volume Up - > Volume Down-> Power - > Volume Down.
Success! The hard rest has just been performed.
If the display is off, press the Power to turn it back on.
In the nest step fo to Windows Phone Settings.
Afterwards find and select About.
To confirm the whole operation tap Reset your phone.
Great job! The factory data reset is done!
Microsoft Lumia 535 Restore Factory Hard Reset Format Phone.So lets start the Microsoft Lumia 535 Restore Factory, Microsoft Lumia 535 Hard Reset.Turn Off the mobile phone for few mints.Microsoft Lumia 535 Remove Pattern Lock.
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.