Hyper-V Enhanced Session Mode 'Intercept' Stopped Working

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  1. Posts : 18
    WIN10 Pro 1809
       #1

    Hyper-V Enhanced Session Mode 'Intercept' Stopped Working


    WIN 10 build 1809. Very strange problem. Hyper-V was working fine with enhanced sessions and then went south. Checked Hyper-v settings and both Server -- > Enhanced Session Mode Policy and User --> Enhanced Session Mode are checked. With new virtual machines there is no opportunity to set resolution, etc.
    Turning off and on enhanced settings -- no joy. There are no files in the vmconnect directory that correspond to my present VMs, only one old one vmconnect.rdp.xxxxxxxxxx.
    I need to change the video size for my existing vm's, but cannot. For a Linux VM I managed to change the video size by modifying the GRUB_CMDLINE_LINUX_DEFAULT in Linux.
    Another important piece: I also use viboot under Macrium to create VMs from backups and it works perfectly:
    the enhanced box pops up on every start to change parameters. Macrium uses Hyper as a back end.
    Why isn't hyper-v creating vmconnect.rdp files for new VMs? What can I do to further troubleshoot this issue?
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  2. cereberus's Avatar
    Posts : 11,414
    Windows10
       #2

    Try uninstalling hyper-v and reinstalling it.
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  3. Posts : 18
    WIN10 Pro 1809
    Thread Starter
       #3

    Uninstalled and reinstalled -- no change. Thanks for the suggestion.
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  4. Kari's Avatar
    Posts : 17,160
    Windows 10 Pro
       #4

    hanks said:
    Turning off and on enhanced settings -- no joy. There are no files in the vmconnect directory that correspond to my present VMs, only one old one vmconnect.rdp.xxxxxxxxxx.
    The RDP config file for a VM is only created when enhanced mode settings are saved. If user switches to enhanced mode without saving the settings, no RDP configuration file will be created.

    To save configuration, first switch to enhanced mode:

    Hyper-V Enhanced Session Mode 'Intercept' Stopped Working-image.png

    Click Show Options:

    Hyper-V Enhanced Session Mode 'Intercept' Stopped Working-image.png

    Select Save my settings and click Connect:

    Hyper-V Enhanced Session Mode 'Intercept' Stopped Working-image.png


    hanks said:
    I need to change the video size for my existing vm's, but cannot.
    In normal mode, resolution can be changed exactly as on physical machines, right click on desktop and select Display Settings.

    When switching to enhanced mode on a VM with no configuration saved, use the slider in VM Connect window to set resolution:

    Hyper-V Enhanced Session Mode 'Intercept' Stopped Working-image.png

    Kari
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  5. Posts : 18
    WIN10 Pro 1809
    Thread Starter
       #5

    Karl --
    Thanks for your info about RDF config files not being created. But my problem still exists. The option to choose enhanced mode is greyed out and cannot be chosen. When creating a new VM, I am not presented with any extra connect options with vmconnect. It just goes straight to the VM.
    I did see an old thread with a similar problem, but no solution was found. One of the config files in C:\Users\<user>\AppData\Roaming\Microsoft\Windows\Hyper-V\Client\1.0 has an entry for 'first run' set to 'false' but I don't think this has any impact? Also, there is a disk cleanup option in hyper-v that I haven't touched. Also, when I uninstalled Hyper-V I didn't delete the config directory or any configured switches, but I finally got all my existing VM's going again, but the enhanced mode for existing and new VMs is still greyed out.

    One additional point: All my VM's are Generation 1; my computer is set up as MBR (not UEFI). When I use viboot under Macrium enhanced mode works perfectly. The settings pop up every time the VM is started.
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  6. Kari's Avatar
    Posts : 17,160
    Windows 10 Pro
       #6

    What operating systems you have on those virtual machines not allowing enhanced mode?

    First, to be able to use enhanced mode, the guest (VM) operating system must Windows 8.1, Windows 10, or Windows Server 2012 R2 or later if installing server versions.

    Also, if VM is Generation 1 (MBR / BIOS), Windows edition must be PRO or better, enhanced mode does not work on HOME edition Generation 1 virtual machines.

    Kari
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  7. Posts : 18
    WIN10 Pro 1809
    Thread Starter
       #7

    Karl,Installed VMs are WIN XP, WIN 7, Limux Mint 19.1 Also have a VM created by Macrium viboot
    My operating system is WIN 10 Pro currently running 1809. Hyper-V worked properly after installing 1809, and also works perfectly when creating a VM using viboot.

    I just reread your previous comment -- the problem is my VMs are all old, EXCEPT the win10 PRO VM I created using viboot!!!

    I guess this solves the issue??
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  8. Kari's Avatar
    Posts : 17,160
    Windows 10 Pro
       #8

    hanks said:
    Karl,Installed VMs are WIN XP, WIN 7, Limux Mint 19.1
    As I said in my previous post, enhanced mode ONLY works on virtual machines with Windows 8.1 or later. See the note in beginning of this tutorial: Turn On or Off Hyper-V Enhanced Session Mode in Windows 10 | Tutorials

    Kari
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  9. Posts : 18
    WIN10 Pro 1809
    Thread Starter
       #9

    Karl -
    I edited my previous thread as you were commenting! I read your tutorial in the past but missed the part about WIN 8.1 or later Also I assume Linux 19.1 isn't a candidate for enhanced.
    Thanks so much for your time and excellent input.
    Cheers, Hank
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  10. cereberus's Avatar
    Posts : 11,414
    Windows10
       #10

    hanks said:
    Karl -
    I edited my previous thread as you were commenting! I read your tutorial in the past but missed the part about WIN 8.1 or later Also I assume Linux 19.1 isn't a candidate for enhanced.
    Thanks so much for your time and excellent input.
    Cheers, Hank
    Ubuntu 18+ officially works in enhanced mode. Only problem is no sound. I have heard people have hacked other versions but afaik this is unofficial.
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