I want to develop and debug Nexus 5 with ADT (based on Eclipse) in Windows 7 x64.
As I connect Nexus 5, it appears in Windows in Explorer, so I can
Well @sonida's answer helped me but Here I am posting complete step How I did it.
Change Mobile Device Settings:
Download Google USB Driver:
5 .Now go to http://developer.android.com/sdk/win-usb.html#top and download USB Drivers --> unzip folder.
Install USB Drivers and Get Connected Device:
6.Then Right click on My computer -->Manage --> Device Manager.
7.You should seed Nexus 5 in the list.
8.Right click on Nexus 5 --> Update Driver Software... --> Browse my computer for driver software
9.select the folder we downloaded/unzipped "latest_usb_driver_windows" and Next ...Ok.
10.Now you will see pop-up dialogue asking for Allow device --> Ok.
11 .That's it!! device is connected now, you can see in DDMS.
Hope this will help someone.