how to install os on HTC ONE M7

[AC Question]

I bought this phone HTC ONE M7 Rooted and i wanted to download the games on there but i couldnt becuase i needed to update my phone but that wasnt possible because i rooted it so i tried to install 5.0 lollipop onto my phone but i screwed up when deleting i deleted everything so now i cant back up and i cant recovery. there is no OS on the phone and it keeps looping onto the htc menu screen. i can only access the team win recovery page i need help getting the OS back without the memory because thats gone and updating the phone as well PLS HELP!

 

[LeoRex]

If you can get into TWRP, you can load a new ROM. If there's nothing on it, download a ROM on a computer, then boot into twrp and connect it. You should be able to copy the ROM (and Gapps) over to the phone.