I have been researching this for hours now and just cant figure it out. I have looked at every possible thread that could help me and done everything they have said(this site and others). I cant install the ADB driver. I dled it through SDK. Phone is on charge only and usb debugging. I initially had problems installing the ADB all together. It kept giving me error messages. I found that installing htc sync as it has helped others in the past. All this did for me was install My HTC and now I cant install ADB at all. I tried to update the myhtc driver to ADB but windows keeps telling me that myhtc is the better driver for it. In my device manager it shows Android USB Devices with My HTC under it, and Potable Devices with Android Phone. After installing htc sync and plugging my phone it started to install correctly. Installed 2 drivers, then said it was looking for ADB. Awesome its gonna work now... NOT!!! Thats when My HTC was installed, and it wont let me update driver to ADB. Im very frustrated right now that I cant get this to work correctly. Sorry for the rambling but I wanted to give as much info as possible. Btw Im rooted and running xtrrom4. gonna try a few more soon just wanted to get this going before I went to bed which turned into a 6 hour project =/. Anyway If anyone has gone through this, or someone who has some ideas on how to make this work Please let me know. Im going nucking futs. Thanks. BTW this phone has a bad esn so its a brick anyway. Im willing to try anything lol. but this has to be something with my comp im guessing. This is just a trial run before i get another. to understand it and try dif roms.