USB Attached SCSI (UAS) Driver - Windows 10 Service
Microsoft Uasp Driver by Microsoft Corporation.
This service also exists in Windows 11 and 8.
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 |
| 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 |
Default Properties
| Display name: | USB Attached SCSI (UAS) Driver |
| Service name: | UASPStor |
| Type: | kernel |
| Path: | %WinDir%\System32\drivers\uaspstor.sys |
| Error control: | normal |
Default Behavior
The USB Attached SCSI (UAS) Driver service is a kernel mode driver. If USB Attached SCSI (UAS) Driver fails to start, the error is logged. Windows 10 startup proceeds, but a message box is displayed informing you that the UASPStor service has failed to start.
Restore Default Startup Type of USB Attached SCSI (UAS) Driver
Automated Restore
1. Select your Windows 10 edition and release, and then click on the Download button below.
2. Save the RestoreUSBAttachedSCSIUASDriverWindows10.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 uaspstor.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.