Windows 10 Services

USB Synopsys Controller - Windows 10 Service

UFX Synopsys Client Driver by Microsoft Corporation.

This service exists in Windows 10 only.

Startup Type

Windows 10 version Home Pro Education Enterprise
1507 Manual Manual Manual Manual
1511 Manual Manual Manual Manual
1607 Manual Manual Manual Manual
1703 Manual Manual Manual Manual
1709 Manual Manual Manual Manual
1803 Manual Manual Manual Manual

Default Properties

Display name:USB Synopsys Controller
Service name:ufxsynopsys
Error control:normal

Default Behavior

The USB Synopsys Controller service is a kernel mode driver. If USB Synopsys Controller fails to start, the error is logged. Windows 10 startup proceeds, but a message box is displayed informing you that the ufxsynopsys service has failed to start.


USB Synopsys Controller is unable to start, if the USB Function Class Extension service is stopped or disabled.

Restore Default Startup Type for USB Synopsys Controller

Automated Restore

1. Select your Windows 10 edition and release, and then click on the Download button below.

2. Save the RestoreUSBSynopsysControllerWindows10.bat file to any folder on your hard drive.

3. Right-click the downloaded batch file and select Run as administrator.

4. Restart the computer to save changes.

Note. Make sure that the ufxsynopsys.sys file exists in the %WinDir%\System32\drivers folder. If this file is missing you can try to restore it from your Windows 10 installation media.