Windows Server 2008 and Upgrading VMware Tools gives vmci.sys 0xc0000098 BSOD

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I just experienced a vmci.sys 0xc0000098 BSOD bluescreen on upgrading VMware Tools on Windows Server 2008 (not R2) and was stuck in an endless reboot loop. It would not even boot into safe mode. However, I used “Last Known Good Configuration” while booting up, and it fixed the issue and allowed me to boot into Windows. A quick Google search didn’t result anything similar so I figured I’d share my findings. Comment if it works for you!

5 thoughts on “Windows Server 2008 and Upgrading VMware Tools gives vmci.sys 0xc0000098 BSOD

  1. had the same error after upgrading an sbs 2008 vm to latest esxi5 vm tools, last known good configuration did not work for me.finally i renamed vmci.sys to vmci.old on c drive and rebooted. server is working again.

  2. We were able to resolve the issue (in a virtual environment) by doing the following:

    – turn off the afflicted server
    – mount the C: drive of that server onto another Windows machine in vCenter
    – rename the vmci.sys to vmci.sys.old
    – disconnect the drive mounting
    – turn the afflicted server back on

  3. Strangely I had this problem this morning updating a hosts tools and then upgrading Virtual Hardware from 4 -> 8. Tools update seemed to go OK, then rebooted – but after doing the virtual hardware I ran into this problem.

    Ended up reverting to snapshot.

    However I subsequently cloned this VM, and reran through the process and it worked beautifully. Go figure!

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