Windows 8 and 8.1 Forums

VM Trouble (2)

  1. #1


    Bahrain
    Posts : 154
    Triple Boot: Windows Xp, Windows 7 and Windows Release Preview, Virtual Machine ( Windows 8 )

    VM Trouble (2)


    Hi! I recently installed Windows 8 Release Preview on my VirtualBox. It seem to work fine till now. I have an issue with the display adapter of the Guest Addition. My Whole system turns slow when I run guest additions with Video Driver. My Question is, Is there any way to uninstall the WDDM from Virtualbox and then use the rest of the features of the Guest Additions like sharing folders ect?

    Thank You
    Shon John Xander

      My System SpecsSystem Spec

  2. #2


    Watford
    Posts : 465
    Windows 7 x64 SP1 Home Premium/Win 8.1 in VBox


    Yes you can.

    Take a snapshot before you do this, just in case.

    1. Go into device manager and locate the driver.
    2. Uninstall the driver. This will hang the system as you have no screen.
    3. Shut down the VM using the x box.
    4. You can create extra screen resolutions using the ExtraData trick. Close VBox completely.

    You need to edit the .vbox file in a text editor. I use Notepad++ and add the top line beow.

    <ExtraData>
    <ExtraDataItem name="CustomVideoMode1" value="1366x768x32"/>
    <ExtraDataItem name="GUI/Fullscreen" value="on"/>
    <ExtraDataItem name="GUI/LastCloseAction" value="powerOff"/>
    <ExtraDataItem name="GUI/LastGuestSizeHint" value="1024,768"/>
    <ExtraDataItem name="GUI/LastNormalWindowPosition" value="8,27,1024,687"/>
    <ExtraDataItem name="GUI/LastScaleWindowPosition" value="122,108,1128,608"/>
    <ExtraDataItem name="GUI/MiniToolBarAlignment" value="top"/>
    <ExtraDataItem name="GUI/SaveMountedAtRuntime" value="yes"/>
    <ExtraDataItem name="GUI/ShowMiniToolBar" value="yes"/>
    </ExtraData>
    The fields are width,height,color depth. You an add more than one just change the 1 to 2 etc.

    5. Restart your VM and the resolutions will be available in screen resolution.
      My System SpecsSystem Spec

  3. #3


    Orbiting the Moon
    Posts : 2,975
    Windows 10 x64


    Good workaround kado897:

    Quote Originally Posted by kado897 View Post
    2. Uninstall the driver. This will hang the system as you have no screen.
    3. Shut down the VM using the x box.
    For this steps you can also roll back the driver, or uninstall without rebooting. (should work on all pc's)
    In Windows 8 the display driver refreshes automatically (applying the standard one) and no reboot is necessary:

    3. Locate the (vbox) display driver and right click on it => roll back driver => wait for refresh, and check the name: it should be the standard or basic display adapter.

    So then it will switch directly to Standard Basic Display Adapter (the one before the additions were installed).

    But then you still have to shut down if you want to add custom resolutions.
      My System SpecsSystem Spec

  4. #4


    Watford
    Posts : 465
    Windows 7 x64 SP1 Home Premium/Win 8.1 in VBox


    Quote Originally Posted by Hopachi View Post
    Good workaround kado897:

    Quote Originally Posted by kado897 View Post
    2. Uninstall the driver. This will hang the system as you have no screen.
    3. Shut down the VM using the x box.
    For this steps you can also roll back the driver, or uninstall without rebooting. (should work on all pc's)
    In Windows 8 the display driver refreshes automatically (applying the standard one) and no reboot is necessary:

    3. Locate the (vbox) display driver and right click on it => roll back driver => wait for refresh, and check the name: it should be the standard or basic display adapter.

    So then it will switch directly to Standard Basic Display Adapter (the one before the additions were installed).

    But then you still have to shut down if you want to add custom resolutions.
    I knew there must be a better way.
      My System SpecsSystem Spec

  5. #5


    Bahrain
    Posts : 154
    Triple Boot: Windows Xp, Windows 7 and Windows Release Preview, Virtual Machine ( Windows 8 )


    Quote Originally Posted by kado897 View Post
    2. Uninstall the driver. This will hang the system as you have no screen.
    I Guess Pressing Host + Delete to Open Task Manager.. Then "Task manager > File > Run New Task" Then in Run, Opening Explorer.exe will do the trick without restarting..

    Any Way, Thanks To you Guys... My Question in Answered.. +1 Rep for both of You..

    Thank You
    Shon John Xander
      My System SpecsSystem Spec

  6. #6


    Watford
    Posts : 465
    Windows 7 x64 SP1 Home Premium/Win 8.1 in VBox


    Hopachi's post above shows a better way. Just right click an roll back the driver.
      My System SpecsSystem Spec

  7. #7


    Bahrain
    Posts : 154
    Triple Boot: Windows Xp, Windows 7 and Windows Release Preview, Virtual Machine ( Windows 8 )


    Yep! that's Right..
      My System SpecsSystem Spec

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