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UEFI vs BIOS Wim load times RRS feed

  • Question

  • Vmware 6.7
    Virtual Windows 10 1903 x64  - vmxnet3 nic

    Virtual Server - WDS and MDT 8456 on same Server 2019

    Trying to figure out why loading the WIM file for a VMware VM in EFI mode takes ~8 minutes while the same VM as BIOS works in seconds?

    I've tried adjusting the TFTP packet size in WDS and even doing the BCD edit directly to decrease the time, but havent found anything that actually works. 

    Bcdedit -store pathto:\default.bcd -set {68d9e51c-a129-4ee1-9725-2ab00a957daf} ramdisktftpblocksize 16384

    Just looking for suggestions. Thanks

    Wednesday, September 18, 2019 4:56 PM