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    Windows Server 2019 STOP 0xc000021a

    Scheduled Pinned Locked Moved Compute
    6 Posts 3 Posters 3.5k Views 1 Watching
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    • siemsenitS Offline
      siemsenit
      last edited by

      Hi there,

      a Windows 2019 Server Guest would not boot anymore after recent updates.
      I am getting BSOD STOP 0xc000021a.

      Host is a XCP-ng 8.1 with current platch level, Guest has Windows Update Tools enabled.

      Anyone else experiencing this kind of problem?

      sad-windows-sop-c000021a.png

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      • olivierlambertO Offline
        olivierlambert Vates 🪐 Co-Founder CEO
        last edited by

        Maybe a Citrix driver issue?

        siemsenitS 1 Reply Last reply Reply Quote 0
        • siemsenitS Offline
          siemsenit @olivierlambert
          last edited by siemsenit

          @olivierlambert Might be... However, all the other windows VMs with citrix drivers seem to run fine (at least until now). As the failed VM was a Domain Controller, I'll set up a new one with free drivers for the moment. Rolling back images isn't recommended my MS for DCs.

          I'll keep my eyes open - just wanted to check if anyone else got into the same trouble.

          siemsenitS 1 Reply Last reply Reply Quote 0
          • siemsenitS Offline
            siemsenit @siemsenit
            last edited by

            By the way, is there a safe way to uninstall Citrix drivers and management agent, turn off "Windows Update Tools" and install the free OSS drivers?

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            • olivierlambertO Offline
              olivierlambert Vates 🪐 Co-Founder CEO
              last edited by

              See our doc: https://xcp-ng.org/docs/guests.html#windows

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              • M Offline
                MartinB
                last edited by MartinB

                Hi, I add the same thing last week. Yes it was a driver issue that got through Windows Update. I actually download the latest driver from Citrix and it solved my issue, I also de-activate the Windows update tools. I didn't try to inject the drivers, I restore a backup from the night before.

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