Default Enter Password to Decrypt storage?

Today I was using Twitter when my phone suddenly rebooted and then it brought me to a screen which says "Enter Password to decrypt storage" and that 30 attempts would wipe the device.

Well Ive never encrypted my device and I tried typing in 30 random things in order for it to wipe but nothing happens, Ive also tried booting into TWRP recovery but it just hangs.

What should I do?
HTC INCREDIBLE MOTOROLA TRIUMPH Samsung Galaxy Nexus HTC One

HP TOUCHPAD Nexus 7