Scanpst.exe does not start

Question

Recently got a new Mini-PC with AMD 7940HS CPU.

Unfortunately scanpst.exe does not open on this machine. In the task manager it appears for a few seconds as a background task, then vanishes. No program window appears.

I've tried office repair and computer restart. I also re-registered the DLLs in the System32 directory. To no avail.

WinDbg gives the following output:

************* Preparing the environment for Debugger Extensions Gallery repositories **************
   ExtensionRepository : Implicit
   UseExperimentalFeatureForNugetShare : true
   AllowNugetExeUpdate : true
   AllowNugetMSCredentialProviderInstall : true
   AllowParallelInitializationOfLocalRepositories : true

   -- Configuring repositories
      ----> Repository : LocalInstalled, Enabled: true
      ----> Repository : UserExtensions, Enabled: true

>>>>>>>>>>>>> Preparing the environment for Debugger Extensions Gallery repositories completed, duration 0.000 seconds

************* Waiting for Debugger Extensions Gallery to Initialize **************

>>>>>>>>>>>>> Waiting for Debugger Extensions Gallery to Initialize completed, duration 0.125 seconds
   ----> Repository : UserExtensions, Enabled: true, Packages count: 0
   ----> Repository : LocalInstalled, Enabled: true, Packages count: 36

Microsoft (R) Windows Debugger Version 10.0.25921.1001 AMD64
Copyright (c) Microsoft Corporation. All rights reserved.

CommandLine: C:\Program Files\Microsoft Office\root\Office16\SCANPST.EXE

************* Path validation summary **************
Response                         Time (ms)     Location
Deferred                                       srv*
Symbol search path is: srv*
Executable search path is: 

+------------------------------------------------------------------------+
| This target supports Hardware-enforced Stack Protection. A HW based    |
| "Shadow Stack" may be available to assist in debugging and analysis.   |
| See aka.ms/userhsp for more info.                                      |
|                                                                        |
| dps @ssp                                                               |
|                                                                        |
+------------------------------------------------------------------------+

ModLoad: 00007ff6`2e140000 00007ff6`2e177000   scanpst.exe
ModLoad: 00007ffc`89350000 00007ffc`89567000   ntdll.dll
ModLoad: 00007ffc`88610000 00007ffc`886d4000   C:\Windows\System32\KERNEL32.DLL
ModLoad: 00007ffc`868a0000 00007ffc`86c46000   C:\Windows\System32\KERNELBASE.dll
ModLoad: 00007ffc`87a00000 00007ffc`87a29000   C:\Windows\System32\GDI32.dll
ModLoad: 00007ffc`86f50000 00007ffc`86f76000   C:\Windows\System32\win32u.dll
ModLoad: 00007ffc`24410000 00007ffc`245f9000   C:\Program Files\Microsoft Office\root\Office16\AppVIsvSubsystems64.dll
ModLoad: 00007ffc`86f80000 00007ffc`87098000   C:\Windows\System32\gdi32full.dll
ModLoad: 00007ffc`88d90000 00007ffc`88e43000   C:\Windows\System32\ADVAPI32.dll
ModLoad: 00007ffc`86800000 00007ffc`8689a000   C:\Windows\System32\msvcp_win.dll
ModLoad: 00007ffc`88b20000 00007ffc`88bc7000   C:\Windows\System32\msvcrt.dll
ModLoad: 00007ffc`1e9f0000 00007ffc`1ec36000   C:\Program Files\Microsoft Office\root\Office16\c2r64.dll
ModLoad: 00007ffc`86c50000 00007ffc`86d61000   C:\Windows\System32\ucrtbase.dll
ModLoad: 00007ffc`87a40000 00007ffc`87ae8000   C:\Windows\System32\sechost.dll
ModLoad: 00007ffc`886e0000 00007ffc`8888e000   C:\Windows\System32\USER32.dll
ModLoad: 00007ffc`88980000 00007ffc`88b20000   C:\Windows\System32\ole32.dll
ModLoad: 00007ffc`88ef0000 00007ffc`89279000   C:\Windows\System32\combase.dll
ModLoad: 00007ffc`86f20000 00007ffc`86f48000   C:\Windows\System32\bcrypt.dll
ModLoad: 00007ffc`87330000 00007ffc`87447000   C:\Windows\System32\RPCRT4.dll
ModLoad: 000001a4`68160000 000001a4`68277000   C:\Windows\System32\RPCRT4.dll
ModLoad: 00007ffc`02790000 00007ffc`02fad000   C:\Program Files\Microsoft Office\root\Office16\OLMAPI32.dll
ModLoad: 00007ffc`87af0000 00007ffc`8834b000   C:\Windows\System32\SHELL32.dll
ModLoad: 00007ffc`61940000 00007ffc`619f5000   C:\Program Files\Microsoft Office\root\Office16\SCNPST32.dll
ModLoad: 00007ffc`26fe0000 00007ffc`27095000   C:\Program Files\Microsoft Office\root\Office16\SCNPST64.dll
ModLoad: 00007ffc`6f770000 00007ffc`6f78b000   C:\Program Files\Microsoft Office\root\Office16\VCRUNTIME140.dll
ModLoad: 00007ffc`6f790000 00007ffc`6f79c000   C:\Program Files\Microsoft Office\root\Office16\VCRUNTIME140_1.dll
ModLoad: 00007ffc`24900000 00007ffc`249e8000   C:\Program Files\Microsoft Office\root\Office16\SCNPST64C.dll
ModLoad: 00007ffc`37650000 00007ffc`376de000   C:\Program Files\Microsoft Office\root\Office16\MSVCP140.dll
ModLoad: 00007ffc`85d30000 00007ffc`85d5c000   C:\Windows\SYSTEM32\USERENV.dll
ModLoad: 00007ffc`85570000 00007ffc`85584000   C:\Windows\SYSTEM32\WTSAPI32.dll
ModLoad: 00007ffc`692f0000 00007ffc`694aa000   C:\Windows\WinSxS\amd64_microsoft.windows.gdiplus_6595b64144ccf1df_1.1.22621.3085_none_57ff6980ce140777\gdiplus.dll
(66b8.6640): Break instruction exception - code 80000003 (first chance)
ntdll!LdrpDoDebuggerBreak+0x30:
00007ffc`8942b784 cc              int     3

Any idea how to solve this? Thanks in advance!

Answer 1

Yes, the above was tested using an Admin account.

---

In the meantime I completely resetted Windows and installed everything anew, as also Defender refused to start with a confusing message. In the fresh installation scanpst works like a charm again. Whatever has gone awry before...

Answer 2

Using a win user admin account?