dpinst.exe /C /S INFO: Option set: dumping log info to console. INFO: Current working directory: 'C:\Users\admin\Downloads\xenbus-8.1-fails\x64' INFO: Running on path 'C:\Users\admin\Downloads\xenbus-8.1-fails\x64' INFO: No valid 'dpinst.xml' file provided. INFO: Install option set: Running in quiet mode. Suppressing Wizard and OS popups. INFO: Found driver package: 'C:\Users\admin\Downloads\xenbus-8.1-fails\x64\xenbus.inf'. INFO: Preinstalling 'c:\users\admin\downloads\xenbus-8.1-fails\x64\xenbus.inf' ... INFO: ENTER: DriverPackagePreinstallW SUCCESS:c:\users\admin\downloads\xenbus-8.1-fails\x64\xenbus.inf is preinstalled. INFO: RETURN: DriverPackagePreinstallW (0x0) INFO: ENTER: DriverPackageGetPathW INFO: RETURN: DriverPackageGetPathW (0x0) INFO: ENTER: DriverPackageInstallW INFO: Installing INF file 'c:\users\admin\downloads\xenbus-8.1-fails\x64\xenbus.inf' (Plug and Play). INFO: Looking for Model Section [Inst.NTamd64]... INFO: Installing devices with Id "PCI\VEN_5853&DEV_0001&SUBSYS_00015853&REV_01" using INF "C:\WINDOWS\System32\DriverStore\FileRepository\xenbus.inf_amd64_4bd85d133237aef4\xenbus.inf". INFO: ENTER UpdateDriverForPlugAndPlayDevices... ERROR: RETURN UpdateDriverForPlugAndPlayDevices. (Error code 0x643: Fatal error during installation.) ERROR: Installation failed. (Error code 0x643: Fatal error during installation.) ERROR: PnP Install failed. (Error code 0x643: Fatal error during installation.) INFO: Attempting to rollback ... SUCCESS:Rollback completed INFO: RETURN: DriverPackageInstallW (0x643) INFO: ENTER: DriverPackageUninstallW INFO: Uninstalling driver package c:\users\admin\downloads\xenbus-8.1-fails\x64\xenbus.inf... INFO: Successfully uninstalled 'C:\WINDOWS\INF\oem10.inf'. INFO: No devices found for C:\WINDOWS\System32\DriverStore\FileRepository\xenbus.inf_amd64_4bd85d133237aef4\xenbus.inf uninstall. INFO: Successfully deleted properties for driver store entry 'C:\WINDOWS\System32\DriverStore\FileRepository\xenbus.inf_amd64_4bd85d133237aef4\xenbus.inf'. SUCCESS:Uninstall completed. INFO: RETURN: DriverPackageUninstallW (0x0) INFO: Machine will have to be rebooted to complete installation. INFO: Returning with code 0xC0010000