Droid Explorer is unable to browse device
Disclaimer: I am the developer of Droid Explorer

Without knowing the exact version of the SDK platform-tools you have installed (but I will assume the latest), I think the problem is with the Android SDK platform-tools. 

Droid Explorer uses a feature in ADB called 'status-window' to keep track of the connection state of the devices. In the latest version (rev. 23), they removed this feature. 

You can manually download an older version of the platform-tools and put them in your SDK directory:


Download rev. 21 of the platform-tools from platform-tools_r21-windows.zip
Rename the platform-tools directory in your SDK to platform-tools-23
Extract the zip file, downloaded previously, to the root of your SDK directory. It contains the platform-tools directory in the zip.


This will be corrected in the next version of Droid Explorer so it will again work with the latest SDK. I have been working on multiple ways to replace the functionality that was removed in the latest revision of the platform-tools. Once I am happy with how it functions and am confident that it is stable, I will release an update.