I came upon a situation where my Google Nexus 7 Tablet could not be detected by my Windows OS.

I tried to check if Google USB Driver was installed. It was but still the problem persisted. I tried some other windows USB related drivers to no avail.

However, this one ruled them all. Download the ADB Driver Installer. It should work with most, if not all Android devices.

If one of the device’s driver got corrupted, this installer will fix it for you.

Go to this link to download it: http://adbdriver.com/

First things first. You need to know the process id in order for the command taskkill to work.

To start with, run this command (include double quotes):

Once you see the results, get the PID (which is the value of the last column) and run this command:

That’s it!