mobile

I really need help....please! I rooted my phone and had VM software. I also downloaded cyanogen. When VM put up update, it started to automatically install. Long story ...short. It does not appear my phone is still rooted. I am running Cyanogen. I cannot install TWRP because it says I am no longer rooted. I want to go back to VM software. I cant get my phone to be recognized by HTC Sync Manager so I can't reinstall VM software. I see the phone as a 710 with internal and external drives on my computer. I have tried to put image file back on my phone and tried to put the original VM software on the phone and NOTHING is working. I am stuck with Cyanogen which isnt working for me. Can anyone help me get my phone back to stock VM? I am desparate!