The "Audio Codec - SysFX Test - Desktop" job fails because it attempts to copy ReconnectBluetoothDevices.dll from the controller; however, the DLL is not present on the controller running VHLK for Windows 11, version 26H1.

Kazutoshi Horiuchi 0 Reputation points
2026-11-12T10:44:44.3733333+00:00

The failure details are as follows:

Cause : Failed to Start the Task

Cause : Zero files are copied when Trying to Copy From Path "\\WIN-XXXXXXXXXXX\tests\AMD64\audio-test\bin\ReconnectBluetoothDevices.dll"....Failing the Task

Failure : Failed to Start the Task "Copy Test DLL"

Cause : Failed to Copy File : "\\WIN-XXXXXXXXXXX\tests\AMD64\audio-test\bin\ReconnectBluetoothDevices.dll" Dest : "C:\HLK\JobsWorkingDir\Tasks\WTTJobRunFE9CD6F2-00D8-F111-9D12-00155D744410\"

Cause : Cannot Find Pattern "\\WIN-XXXXXXXXXXX\tests\AMD64\audio-test\bin\ReconnectBluetoothDevices.dll"

The server \\WIN-XXXXXXXXXXX is the server for HLK for Windows 11, version 26H1.

The file \\WIN-XXXXXXXXXXX\tests\AMD64\audio-test\bin\ReconnectBluetoothDevices.dll does not actually exist.

The following tests also fail for the same reason:

  • Audio Codec - AC3 Test - Certification - Desktop
  • Audio Codec - Device Power State Transition Test
  • Audio Codec - General Audio Test
  • Audio Codec - Hardware Offload of Audio Processing Test - Certification
  • Audio Codec - Lullaby Test - Certification - Desktop
  • Audio Codec - SysFX Test - Desktop
  • Audio Codec - Wave Test - Certification
  • Audio Codec - UAA Test (Manual) - Desktop
  • Audio Codec - USB Audio Logo Test (Manual) - Certification - Desktop
Windows for home | Other | Devices and drivers
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  1. Carl-L 24,995 Reputation points Microsoft External Staff Moderator
    2026-11-13T06:47:09.6333333+00:00

    Hello Kazutoshi Horiuchi,

    Welcome to Microsoft Q&A forum.

    Before we proceed, may I know the test command that you entered as well? Or if you don't use command, please let me know how you perform the test.

    I'm waiting for your reply.

    Was this answer helpful?


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