I can use my HTC One in fastboot and when booted into Android via ADB commands just fine. Windows 7 recognizes the device and lets me communicate with it.
When I boot into TWRP and select ADB Sideload, it reports the device as Unknown Device in Device Manager. I cannot use any ADB commands with it.
Any ideas? Is there a specific driver I need to install? The ones I used for normal Android don't seem to work!