Ub93 Driver Windows 10 (GENUINE – 2027)

Prolific’s new driver (v11.0 and above) will cause a Code 10 error on purpose. You need an older but still compatible driver.

The safe solution for clones (v3.3.2.105 – works on Windows 10 22H2): ub93 driver windows 10

In Device Manager, right-click the UB93 device > Update driver > Browse my computer > Let me pick > Have Disk.

Browse to the extracted folder and select the .inf file.

Install ignoring the warning.

If you have landed on this article, you are likely searching for the elusive "UB93 driver Windows 10" because a piece of hardware—probably a USB-to-serial adapter, a legacy data transfer cable, a barcode scanner, or an industrial control device—is not working properly on your modern Windows 10 PC. Prolific’s new driver (v11

The UB93 typically refers to a USB bridge controller chip (often from Prolific, WinChipHead, or a generic Chinese manufacturer). These chips are found in: In Device Manager, right-click the UB93 device >

The problem? Windows 10 does not automatically include a native driver for UB93-based devices, and Microsoft’s driver signature enforcement often blocks older, unsigned drivers that used to work on Windows 7/XP.

This guide will walk you through every known method to successfully install the UB93 driver on Windows 10 (32-bit and 64-bit), including troubleshooting the most common "Code 10" and "Code 28" errors.

Cause: Windows Update automatically replaced your working driver with a newer, incompatible version. Fix: