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#Alcor micro usb card reader driver uninstall youtube install
#Alcor micro usb card reader driver uninstall youtube full
#Alcor micro usb card reader driver uninstall youtube windows 10
#Alcor micro usb card reader driver uninstall youtube windows 7

Reinstall VMWare Player/Workstation and reboot.

#Alcor micro usb card reader driver uninstall youtube full

Clean the installation by using the /clean switch with the Player/Workstation full installation file even if it says it didn't do anything, it actually clears the drivers.

#Alcor micro usb card reader driver uninstall youtube windows 10

Uninstall VMWare Player/Workstation from the Add/Remove programs in Windows 10.

The vmusb.sys file (found in C:\Program files (x86)\Common Files\VMWare\USB) that I had was about 40 KB while the new one (on a fresh OS install) is more than 60 KB (CRC32 = 453B8131) and copying that file to the problematic host machine and then updating the unknown driver via Windows Device Manager basically solves the problem.

#Alcor micro usb card reader driver uninstall youtube install

On a clean install of Windows 10 installing VMWare Player/Workstation 12 does not result into the problem, so I think it may be related to the upgrade from 7/8 to 10 OS with VMWare installed (both machine had this configuration). Trying to reinstall/upgrade vmusb.sys on the machines is not possible because it doesn't recognize the driver (just like it's not a valid driver for the current operating system). OK, I've done some further investigations and solved the issue.įirst of all, the problem exists both on Windows 10 Anniversary and the previous release (v1511). T17:52:46.604-07:00| vmx| I125: VUsbUpdateVigorFieldsAndAutoconnect: New set of 6 USB devices T17:52:46.521-07:00| vmx| I125: The connection for the USB device 'Alcor Micro Mass Storage' was unsuccessful. T17:50:46.005-07:00| vmx| I125: VUsbUpdateVigorFieldsAndAutoconnect: New set of 6 USB devices With some devices, the host may display the message "The device can now safely be removed." It will first be stopped to enable safe removal. T17:50:45.990-07:00| vmx| I125+ A USB device is about to be unplugged from the host and connected to this virtual machine. T17:50:45.990-07:00| vmx| I125: Policy_GetUSBDevAccess: checking usb devices at policy path: /vm/#_VMX/mvm/policyState/val/policySet/usbDevices/# T17:50:25.262-07:00| vmx| I125: VUsbUpdateVigorFieldsAndAutoconnect: New set of 6 USB devices Here is an excerpt of a log showing the error. Probably more stuff that I can't remember, since it's been broken for a while.Creating a new VM from scratch (Windows 10).Different USB drives, including thumb drives, SD card reader (I think) and my Windows phone.Different USB ports (both USB 2 and USB 3).A while later, the notice pops up that the device failed to connect and the green dot disappears.

But it doesn't show up on the target neither in Explorer nor in Device Manager. The USB device icons display correctly in the status bar, and when I click "Connect (Disconnect from Host)," it adds the green dot as expected to show it's connected and the device disappears from my host system.

#Alcor micro usb card reader driver uninstall youtube windows 7

Ever since I upgraded from Windows 7 to Windows 10, I have been unable to connect USB devices to my VMWare machines.