HTC One File Transferring Problems???

[Koganox]

I just got my Verizon HTC One, and after getting it setup and updated I wanted to put some music and movies on it. The drivers started installing once I plugged it in via USB to PC. After everything seemed good to go, I tried to drag & drop a movie, music, and ISO/CSO files and it would take FOREVER, then finally tell me that there is an "Error transfering (file) - the device has been disconnected or an error has occured" This happens with just about every file type. The files were anywhere from 5mb-1.5g, I can drag & drop pictures though....

Also the HTC Sync Manager doesn't recognize my HTC One even after changing it to "Internet pass-through"

I found the only way I could transfer files is through AirDroid, which is kind of annoying.

If anyone could help, it would be greatly appreciated.

Thanks