Win32 PE also have warnning in WinDbg. But it is just a warnning, everything works fine.
WinDbg v10.0.19041.865 AMD64, Win7 64 SP1
CommandLine: D:\ydcTempQ\PEpad.exe
************* Path validation summary **************
Response Time (ms) Location
Deferred srv*D:\Symbols*https://msdl.microsoft.com/download/symbols
DBGHELP: Symbol Search Path: srv*d:\symbols*https://msdl.microsoft.com/download/symbols
Symbol search path is: srv*D:\Symbols*https://msdl.microsoft.com/download/symbols
Executable search path is:
ModLoad: 00000000`002f0000 00000000`0030c000 PEpad.exe
ModLoad: 00000000`774b0000 00000000`77659000 ntdll.dll
ModLoad: 00000000`77690000 00000000`77810000 ntdll32.dll
ModLoad: 00000000`74fe0000 00000000`7501f000 C:\Windows\SYSTEM32\wow64.dll
ModLoad: 00000000`74f80000 00000000`74fdc000 C:\Windows\SYSTEM32\wow64win.dll
ModLoad: 00000000`74f70000 00000000`74f78000 C:\Windows\SYSTEM32\wow64cpu.dll
(12e4.eac): Break instruction exception - code 80000003 (first chance)
SYMSRV: BYINDEX: 0x8
d:\symbols*https://msdl.microsoft.com/download/symbols
ntdll.pdb
6192BFDB9F04442995FFCB0BE95172E12
SYMSRV: PATH: d:\symbols\ntdll.pdb\6192BFDB9F04442995FFCB0BE95172E12\ntdll.pdb
SYMSRV: RESULT: 0x00000000
DBGHELP: ntdll - public symbols
d:\symbols\ntdll.pdb\6192BFDB9F04442995FFCB0BE95172E12\ntdll.pdb
ntdll!LdrpDoDebuggerBreak+0x30:
00000000`7755cb60 cc int 3
0:000> !sym noisy
noisy mode - symbol prompts on
0:000> bl *
0:000> bp PEpad!WinMain
DBGHELP: PEpad.exe is stripped. Searching for dbg file
SYMSRV: BYINDEX: 0x9
d:\symbols*https://msdl.microsoft.com/download/symbols
PEpad.dbg
63454B741c000
SYMSRV: UNC: d:\symbols\PEpad.dbg\63454B741c000\PEpad.dbg - path not found
SYMSRV: UNC: d:\symbols\PEpad.dbg\63454B741c000\PEpad.db_ - path not found
SYMSRV: UNC: d:\symbols\PEpad.dbg\63454B741c000\file.ptr - path not found
SYMSRV: HTTPGET: /download/symbols/index2.txt
SYMSRV: HttpSendRequest: 800C2EE7 - ERROR_INTERNET_NAME_NOT_RESOLVED
SYMSRV: HTTPGET: /download/symbols/PEpad.dbg/63454B741c000/PEpad.dbg
SYMSRV: HttpSendRequest: 800C2EE7 - ERROR_INTERNET_NAME_NOT_RESOLVED
SYMSRV: RESULT: 0x800C2EE7
*** WARNING: Unable to verify checksum for PEpad.exe
DBGHELP: PEpad - coff symbols
D:\ydcTempQ\PEpad.dbg
0:000> g
ModLoad: 00000000`77390000 00000000`774af000 WOW64_IMAGE_SECTION
ModLoad: 00000000`754a0000 00000000`755b0000 WOW64_IMAGE_SECTION
ModLoad: 00000000`77390000 00000000`774af000 NOT_AN_IMAGE
ModLoad: 00000000`77290000 00000000`7738a000 NOT_AN_IMAGE
ModLoad: 00000000`754a0000 00000000`755b0000 C:\Windows\syswow64\kernel32.dll
ModLoad: 00000000`762d0000 00000000`76316000 C:\Windows\syswow64\KERNELBASE.dll
ModLoad: 00000000`76320000 00000000`76420000 C:\Windows\syswow64\USER32.dll
ModLoad: 00000000`759e0000 00000000`75a70000 C:\Windows\syswow64\GDI32.dll
ModLoad: 00000000`75250000 00000000`7525a000 C:\Windows\syswow64\LPK.dll
ModLoad: 00000000`75280000 00000000`7531d000 C:\Windows\syswow64\USP10.dll
ModLoad: 00000000`755b0000 00000000`7565c000 C:\Windows\syswow64\msvcrt.dll
ModLoad: 00000000`75370000 00000000`75410000 C:\Windows\syswow64\ADVAPI32.dll
ModLoad: 00000000`75b90000 00000000`75ba9000 C:\Windows\SysWOW64\sechost.dll
ModLoad: 00000000`75f70000 00000000`76060000 C:\Windows\syswow64\RPCRT4.dll
ModLoad: 00000000`751f0000 00000000`75250000 C:\Windows\syswow64\SspiCli.dll
ModLoad: 00000000`751e0000 00000000`751ec000 C:\Windows\syswow64\CRYPTBASE.dll
ModLoad: 00000000`6f680000 00000000`6f81e000 C:\Windows\WinSxS\x86_microsoft.windows.common-controls_6595b64144ccf1df_6.0.7601.17514_none_41e6975e2bd6f2b2\COMCTL32.dll
ModLoad: 00000000`75bb0000 00000000`75c07000 C:\Windows\syswow64\SHLWAPI.dll
ModLoad: 00000000`756f0000 00000000`7576b000 C:\Windows\syswow64\COMDLG32.dll
ModLoad: 00000000`76420000 00000000`7706a000 C:\Windows\syswow64\SHELL32.dll
(12e4.eac): WOW64 breakpoint - code 4000001f (first chance)
First chance exceptions are reported before any exception handling.
This exception may be expected and handled.
SYMSRV: BYINDEX: 0xA
d:\symbols*https://msdl.microsoft.com/download/symbols
wntdll.pdb
DCCFF2D483FA4DEE81DC04552C73BB5E2
SYMSRV: PATH: d:\symbols\wntdll.pdb\DCCFF2D483FA4DEE81DC04552C73BB5E2\wntdll.pdb
SYMSRV: RESULT: 0x00000000
DBGHELP: ntdll32 - public symbols
d:\symbols\wntdll.pdb\DCCFF2D483FA4DEE81DC04552C73BB5E2\wntdll.pdb
ntdll32!LdrpDoDebuggerBreak+0x2c:
77730f3b cc int 3
0:000:x86> g
ModLoad: 770a0000 77100000 C:\Windows\SysWOW64\IMM32.DLL
ModLoad: 75910000 759dc000 C:\Windows\syswow64\MSCTF.dll
ModLoad: 74e00000 74e29000 C:\Windows\SysWOW64\nvinit.dll
ModLoad: 74df0000 74df9000 C:\Windows\SysWOW64\VERSION.dll
ModLoad: 6f670000 6f676000 C:\Program Files (x86)\NVIDIA Corporation\CoProcManager\detoured.dll
ModLoad: 6f630000 6f661000 C:\Program Files (x86)\NVIDIA Corporation\CoProcManager\nvd3d9wrap.dll
ModLoad: 75770000 7590d000 C:\Windows\syswow64\SETUPAPI.dll
ModLoad: 77070000 77097000 C:\Windows\syswow64\CFGMGR32.dll
ModLoad: 77100000 7718f000 C:\Windows\syswow64\OLEAUT32.dll
ModLoad: 75c10000 75d6c000 C:\Windows\syswow64\ole32.dll
ModLoad: 75260000 75272000 C:\Windows\syswow64\DEVOBJ.dll
ModLoad: 6f610000 6f630000 C:\Program Files (x86)\NVIDIA Corporation\CoProcManager\nvdxgiwrap.dll
Breakpoint 0 hit
PEpad!WinMain:
002f1000 55 push ebp
0:000:x86> u
PEpad!WinMain:
002f1000 55 push ebp
002f1001 89e5 mov ebp,esp
002f1003 83ec4c sub esp,4Ch
002f1006 53 push ebx
002f1007 56 push esi
002f1008 8b5d08 mov ebx,dword ptr [ebp+8]
002f100b 8b4510 mov eax,dword ptr [ebp+10h]
002f100e 8b7514 mov esi,dword ptr [ebp+14h]