C:\Windows\system32\drivers\usbstor.sys.These 3 files should exist (or the driver is corrupt) > Uncheck "Hide extensions for known file types". > Click Control Panel->Folder Options->View It will be easier to follow instructions if you can easily see Windows file extensions The following instructions apply to Windows Vista and higher. If error is because no driver could be found, you'll see device status code= 28 Right click the device ->Properties->General tab. The device may be listed under "Other Devices" or other places in Device Manager. Device Manager will have an entry with a yellow icon - indicating a device error. When driver files are missing, the driver is corrupt and can't be installed. If it's an internal CD/DVD drive Windows only installs the CD/DVD driver for it Only after the Mass Storage driver is installed and working correctly, Windows installs the CD/DVD driver. If you have a USB CD/DVD note that Windows installs the USB Mass Storage driver first. CD/DVD Driver - used for CD/DVD players.USB Mass Storage Driver - used for external USB storage devices like flash drives, hard disks, and USB CD/DVD drives.Since Windows 7 does not have any native USB/xHCI support, Windows 7 Host USB ports on the MSI AM4 Board are all driven by AMD 3 / 3.1 xHCI controller drivers.How to Repair Corrupt USB Mass Storage or CD/DVD Driversįor some unknown reason, I've been seeing cases where USB Mass Storage or CD/DVD driver files go missing. Have I hit a roadblock? Is there some incompatibility between AM4 xHCI and VMWare Workstation 14? I have made repeated tries with a few pen drives (USB 2 as well as 3) and the error is consistent. Well nothing from the USB pen drive is in use on the Host. Close applications that might be using the device. Now a USB pen drive connected to USB 3 port on Host is somehow detected in VM-> Removable Devices Menu, but when I try to connect, VM saysĬonnection was unsuccessful. All VM Ware services are running and set to Automatic start.
It does not even show up under Removable device menu. I create a Windows 10 64 Guest OS and now no matter what is the xHCI hand off setting in Host BIOS, any USB mass storage device connected to USB 2 ports is not detected in VM. I have VMWare Workstation 14 on Windows 7 Host PC on MSI B450M AMD AM4 Motherboard.Īs far as what I best understand, on AM4 chipset all USB 2 as well as USB 3 ports are essentially controlled by xHCI controller.
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