USB Role-Switch Class Extension by Microsoft Corporation.
This service also exists in Windows 11.
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 |
1809 | Manual | Manual | Manual | Manual |
1903 | Manual | Manual | Manual | Manual |
1909 | Manual | Manual | Manual | Manual |
2004 | Manual | Manual | Manual | Manual |
20H2 | Manual | Manual | Manual | Manual |
21H1 | Manual | Manual | Manual | Manual |
21H2 | Manual | Manual | Manual | Manual |
22H2 | Manual | Manual | Manual | Manual |
Display name: | USB Role-Switch Support Library |
Service name: | UrsCx01000 |
Type: | kernel |
Path: | %WinDir%\system32\drivers\urscx01000.sys |
Error control: | normal |
Group: | System Bus Extender |
The USB Role-Switch Support Library service is a kernel mode driver. If USB Role-Switch Support Library fails to start, the error is logged. Windows 10 startup proceeds, but a message box is displayed informing you that the UrsCx01000 service has failed to start.
If USB Role-Switch Support Library is stopped, the following services cannot start:
1. Select your Windows 10 edition and release, and then click on the Download button below.
2. Save the RestoreUSBRoleSwitchSupportLibraryWindows10.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 urscx01000.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.