Synopsys USB Role-Switch Driver (UrsSynopsys) Service Defaults in Windows 10

USB Role-Switch Driver for Synopsys Core by Microsoft Corporation.

Default Settings

Startup type: Manual
Display name:Synopsys USB Role-Switch Driver
Service name:UrsSynopsys
Service type:kernel
Error control:normal
Registry key:HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\UrsSynopsys

Default Behavior

Synopsys USB Role-Switch Driver is a kernel device driver. In Windows 10 it is starting only if the user, an application or another service starts it. If Synopsys USB Role-Switch Driver fails to start, the failure details are being recorded into Event Log. Then Windows 10 will start up and notify the user that the UrsSynopsys service has failed to start due to the error.


Synopsys USB Role-Switch Driver cannot be started under any conditions, if the USB Role-Switch Support Library service is disabled.

Restore Default Startup Configuration of Synopsys USB Role-Switch Driver

Before you begin doing this, make sure that all the services on which Synopsys USB Role-Switch Driver depends are configured by default and function properly. See the list of dependencies above.

1. Run the Command Prompt as an administrator.

2. Copy the command below, paste it into the command window and press ENTER:

sc config UrsSynopsys start= demand

3. Close the command window and restart the computer.

The UrsSynopsys service is using the urssynopsys.sys file that is located in the C:\Windows\System32\DriverStore\FileRepository\urssynopsys.inf_x86_91dfd39a139684f9 directory. If the file is removed or corrupted, read this article to restore its original version from Windows 10 installation media.