Where are the debugging symbols for Windows 10 Build 21296?

Question

The symbol server is missing symbols for Windows 10 Build 21296. symchk dump below.

    symchk.exe /if build/windows/explorer.exe /v

    [SYMCHK] Searching for symbols to V:\Temp\21296\build\windows\explorer.exe in path SRV*V:\Symbols*https://msdl.microsoft.com/download/symbols
    DBGHELP: Symbol Search Path: SRV*V:\Symbols*https://msdl.microsoft.com/download/symbols
    [SYMCHK] Using search path "SRV*V:\Symbols*https://msdl.microsoft.com/download/symbols"
    DBGHELP: No header for V:\Temp\21296\build\windows\explorer.exe.  Searching for image on disk
    DBGHELP: V:\Temp\21296\build\windows\explorer.exe - OK
    SYMSRV:  BYINDEX: 0x1
             V:\Symbols*https://msdl.microsoft.com/download/symbols
             explorer.pdb
             C771F9CAE89E3949F75BD3CA172F60ED1
...
    SYMSRV:  HttpQueryInfo: 80190190 - HTTP_STATUS_BAD_REQUEST
    SYMSRV:  HTTPGET: /download/symbols/explorer.pdb/C771F9CAE89E3949F75BD3CA172F60ED1/explorer.pdb
    SYMSRV:  HttpQueryInfo: 80190194 - HTTP_STATUS_NOT_FOUND
    SYMSRV:  HTTPGET: /download/symbols/explorer.pdb/C771F9CAE89E3949F75BD3CA172F60ED1/explorer.pd_
    SYMSRV:  HttpQueryInfo: 80190194 - HTTP_STATUS_NOT_FOUND
    SYMSRV:  HTTPGET: /download/symbols/explorer.pdb/C771F9CAE89E3949F75BD3CA172F60ED1/file.ptr
    SYMSRV:  HttpQueryInfo: 80190194 - HTTP_STATUS_NOT_FOUND
    SYMSRV:  RESULT: 0x80190194
...
    [SYMCHK] PDB: ""
    [SYMCHK] CV: RSDS
    [SYMCHK] CV DWORD: 0x53445352
    [SYMCHK] CV Data:  explorer.pdb
    [SYMCHK] PDB Sig:  0
    [SYMCHK] PDB7 Sig: {C771F9CA-E89E-3949-F75B-D3CA172F60ED}
    [SYMCHK] Age: 1
    [SYMCHK] PDB Matched:  TRUE
    [SYMCHK] DBG Matched:  TRUE
    [SYMCHK] Line nubmers: FALSE
    [SYMCHK] Global syms:  FALSE
    [SYMCHK] Type Info:    FALSE
    [SYMCHK] ------------------------------------
    SymbolCheckVersion  0x00000002
    Result              0x00010001
    DbgFilename         explorer.dbg
    DbgTimeDateStamp    0x00000000
    DbgSizeOfImage      0x00000000
    DbgChecksum         0x00000000
    PdbFilename         explorer.pdb
    PdbSignature        {00000000-0000-0000-0000-000000000000}
    PdbDbiAge           0x00000000
    [SYMCHK] [ 0x00000000 - 0x00010001 ] Checked "V:\Temp\21296\build\windows\explorer.exe"
    SYMCHK: explorer.exe         FAILED  - explorer.pdb mismatched or not found
    SYMCHK: FAILED files = 1
    SYMCHK: PASSED + IGNORED files = 0

Answer 1

Hi,
please refer to the link below.
https://learn.microsoft.com/en-gb/windows-hardware/drivers/debugger/debugger-download-symbols
Hope above information can help you.

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