HTC One M8 - Need to get photos from it. System Ui stopped. Flashing screen afterwards

[AC Question]

Hi everyone, recently my phone said system Ui has stopped unexpectedly and if i click ok the screen just flashes. Also when i plug it into my computer it is not recognised as a drive even though the connection sounds are made. If there is any way i can get my photos back i would be very appreciative.

 

[B. Diddy]

Welcome to Android Central! Try booting into Recovery and wiping the cache partition: https://support.t-mobile.com/docs/DOC-10672