Strange DLL's in EFI Partition

Discussion in 'PC Hardware' started by Obelix, Aug 18, 2021.

  1. Obelix

    Obelix MDL Junior Member

    Oct 2, 2008
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    Hello,

    i bought a new Acer Laptop and made a clean install on a new SSD with Windows 10 Pro 21H1

    While checking the EFI Partition i found these files:

    \EFI\Microsoft\Boot\

    kdnet_uart16550.dll
    kdstub.dll
    kd_02_10df.dll
    kd_02_10ec.dll
    kd_02_1137.dll
    kd_02_14e4.dll
    kd_02_15b3.dll
    kd_02_1969.dll
    kd_02_19a2.dll
    kd_02_1af4.dll
    kd_02_8086.dll
    kd_07_1415.dll
    kd_0C_8086.dll

    10ec, 14e4, 8086 looks like Vendor ID's

    Does anyone know, why these files are in the EFI Partion? I googled already, but not found any hints.

    greetings Obelix
     
  2. MarvelX7

    MarvelX7 MDL Member

    Jun 1, 2021
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    the kdnet_uart16550.dll file is part of the Microsoft Windows Operating System!
    Network Kernel Debug Serial Extensibility Module
     
  3. bear_aussie

    bear_aussie MDL Senior Member

    Jun 8, 2015
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    292
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    theyre the kernel debugger communication dlls
    they look like vendor ids cos they r - each 1 is 4 a diffrent debug cable/connection method
     
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  4. Obelix

    Obelix MDL Junior Member

    Oct 2, 2008
    80
    3
    0
    Thanks! Can i delete these files? Why are these files created there in the first place? I did't install any debugging software. It is the first time, that i see such files in the EFI Partition.

    It is an fresh installed Acer Nitro 5 with GTA5, RDR2 and MSI Afterburner.
     
  5. bear_aussie

    bear_aussie MDL Senior Member

    Jun 8, 2015
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    yeah but u'll lose boot time debug support
    they come with windos 10 & i think 8.x too by default
    windows has always had this boot time debugger but...
    win7 & earlier only supported serial (rs232) debugging iirc which is built rite into bootmgr so doesnt need these "drivers"
     
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