Why does my phone format if I turn it off and back on again?

[AC Question]

Phone formats if i turn it off and back on again

Allright so i actually rooted it but at 28% of the rooting progress my phone shuts off and after i turned it back on it formatted, but I didn't mind that, i cancelled the root however everytime i turn off my phone it formats again
(used root:kingo root)

 

[B. Diddy]

Re: Phone formats if i turn it off and back on again

Welcome to Android Central! Which phone?