Need to reset your iPhone? Here’s how to format an iPhone safely, erase data, and give your device a fresh start in simple ...

You can use recovery mode to restore your iPhone or iPad if you've forgotten your passcode. To access the recovery mode, you need a computer and a cable to connect your iPhone to the computer.

Thankfully, all hope is not lost for Windows computer users — there is a largely unknown alternative to using iTunes to back up and restore your iPhone to a PC.