My new Nexus 5 will not show in Eclipse. I have tried every single solution on the internet for the last 3 hours. I have windows 8, not 8.1. I have a new HP Envy laptop. I a
For windows 8 64 bit
Download USB driver from here http://developer.android.com/sdk/win-usb.html#top
Connect your Android-powered device to your computer's USB port.
Right-click on Computer from your desktop or Windows Explorer, and select Manage.
Select Devices in the left pane.
Locate and expand Other device in the right pane.
Right-click the device name (such as Nexus S) and select Update Driver Software. This will launch the Hardware Update Wizard.
Select Browse my computer for driver software and go to the usb driver folder which downloaded from above provided link.
(or)
if you installed usb driver from sdk manager. locate the USB driver folder. (The Google USB Driver is located in \extras\google\usb_driver.)
Click Next to install the driver.
Follow the above steps this worked for me for more information visit here http://developer.android.com/tools/extras/oem-usb.html#InstallingDriver