VMware vSphere

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  • 1.  Windows 10 VM

    Posted Feb 04, 2020 03:22 PM

    We have a Windows 10 virtual machine in EFI boot mode.  The VM boots up fine, but when we add a virtual CD-ROM drive (just to install VMware Tools), the operation is successful but no CD-ROM drive ever appears in the guest OS.  It seems to have something to do with the fact it's an EFI partition.  Also, the line firmware = "efi" is in the vmx file but this seems to have no effect on the issue.  In vCenter, edit virtual hardware, everything works fine, but in the guest, even though the CD-ROM drive says it's connected, it is not present in file explorer. 

    Also, if we attempt to create a new VM and boot to the Windows 10 ISO, if it's EFI, it fails to boot.  If we go into the guest boot session and select the CD drive, it does boot to the cd-rom ISO, but then reboots itself after a few seconds, and never makes it to the OS installation.  It will just keep rebooting itself over and over.

    Is there a solution to this?

    Many thanks,

    Sam (flux boy)

  • 2.  RE: Windows 10 VM

    Posted Feb 04, 2020 03:44 PM

    The following might help to know more about the problem.

    1. Windows 10 version

    2. vSphere version

    When you create VM in VM hardware 14 and above, it is default UEFI. Unless, I have completely missed the problem.

  • 3.  RE: Windows 10 VM

    Posted Feb 04, 2020 04:03 PM


    you have to provide more information ... vmware version?

    I don't understand why to install the "vmware tools" you have to go through cd-rom


  • 4.  RE: Windows 10 VM
    Best Answer

    Posted Nov 09, 2020 05:10 PM

    I forgot about this post and don't remember exactly what we did. I think the issue was caused by a security application that blocks access to removable media. We either excluded the machine from having removable media blocked, or installed VMware Tools from a network drive. We were/are on vSphere version 6.7.