FTM (Factory Test Mode) over Android Windows Driver refers to a specific driver or set of drivers that facilitate communication between an Android device and a Windows PC in a special "Factory Test Mode" (FTM). This mode is generally used for diagnostics, firmware flashing, or other specialized tasks related to testing and manufacturing processes. It may also be used to interact with the device at a low level for troubleshooting or advanced maintenance.

Typically, FTM is used for Qualcomm and MediaTek based Android devices, and the FTM driver may be used to enable certain testing features, such as communication between the Android device and diagnostic tools that run on a Windows PC.