I own a Nokia Lumia 730.. Recently updated it to windows 10. I am not able to find the reset lock on my phone. Since the settings menu has changed and there is no option that i can see to turn that on. Can somebody help me with this?
This has changed with Windows 10 Mobile. From Microsoft's documentation:
When you set up your phone, sign in with your Microsoft account and accept the recommended settings. That's all you need to do to turn on Reset Protection. If you don't turn it on during setup, you can always go to Settings > Updates & security > Find my phone later and do it there.
After you turn on Reset Protection, you'll get a "Welcome to Reset Protection" confirmation sent to the email address associated with your Microsoft account.
So it would appear that it should automatically be turned on if you've turned on Find My Phone.