Upon reboot, press or F7 to select Disable driver signature enforcement .
Method 1: Installing via Windows Device Manager (Recommended)
: Look under Network adapters or Other devices . It may appear with a yellow warning triangle. ub93 driver windows 10
If the issue started after a recent Windows update, open the device's Properties in Device Manager, go to the Driver tab, and click Roll Back Driver . Compatibility Mode for Older Drivers
Once the driver is installed:
or wireless network adapters. While Windows 10 often includes built-in support for these devices, you may need manual drivers if the device is not automatically recognized. Hardware Identification
The UB93 chip is frequently a clone or variant of the family. However, Prolific has intentionally broken support for counterfeit chips in their latest drivers. Upon reboot, press or F7 to select Disable
The term typically refers to a specific chipset or hardware identifier used in various USB-based peripherals. Most commonly, it is associated with:
If it is grayed out, reinstall your manual driver using Method 1 . To stop Windows from doing this again, you can download Microsoft's "Show or hide updates" troubleshooter utility to explicitly block updates for that hardware ID. Safe Practices When Downloading Hardware Drivers If the issue started after a recent Windows
: Often, Microsoft's repository includes a compatible version that installs automatically upon plugging in the device. Device Manager Update Right-click the button and select Device Manager
Windows 10 features a vast driver library that frequently recognizes older or niche USB chipsets automatically. Go to > Update & Security > Windows Update . Click Check for updates .