Only if region is US

hi. i have some problem… share to me the solution

Your advise is somehow rational but I believe Microsoft should’ve said something officially to avail this feature for former windows phone users who are just updating to WP 8.1 update 2.

You should hard reset it after each update. This would significantly improves the performance and battery life.

“Turn on Reset Protection

When you set up your phone, just 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 > Find my phone later and do it there.”

http://www.windowsphone.com/en-US/how-to/wp8/settings-and-personalization/protect-my-phone

BTW, I’ve been using windows phone since 2013 and I never reset my phone.

I believe you may need to enable it when you set up the phone for the first time. Next time you reset your phone there should be an option to turn reset protection on while setting up your account.