I am not sure if I will move it at this time, though I probably eventually will. BTW below I have attached a segment from the addition.txt file generated by FRST.EXE that at least identifies the makecab.exe errors that are occurring along with the faulting ntdll.dll module. Wonder if just replacing the .dll might be beneficial?
Application errors:
==================
Error: (07/03/2021 10:03:53 AM) (Source: Office 2016 Licensing Service) (EventID: 0) (User: )
Description: Event-ID 0
Error: (07/03/2021 10:03:53 AM) (Source: Microsoft Office 16) (EventID: 2011) (User: )
Description: Office Subscription licensing exception: Error Code: 0x803D0014; CorrelationId: {C7B47003-03D1-4597-BDD3-5DCD61D10B52}
Error: (07/03/2021 10:03:53 AM) (Source: Microsoft Office 16) (EventID: 2011) (User: )
Description: Office Subscription licensing exception: Error Code: 0x803D0014; CorrelationId: {C7B47003-03D1-4597-BDD3-5DCD61D10B52}
Error: (07/03/2021 09:58:36 AM) (Source: Application Error) (EventID: 1000) (User: )
Description: Faulting application name: makecab.exe, version: 6.1.7600.16385, time stamp: 0x4a5bc17e
Faulting module name: ntdll.dll, version: 6.1.7601.24545, time stamp: 0x5e0eb67f
Exception code: 0xc0000005
Fault offset: 0x0000000000032ad4
Faulting process id: 0x27fc
Faulting application start time: 0x01d77024473d48b6
Faulting application path: C:\Windows\system32\makecab.exe
Faulting module path: C:\Windows\SYSTEM32\ntdll.dll
Report Id: 85d0760f-dc17-11eb-b129-10bf487beddf
Error: (07/03/2021 09:53:14 AM) (Source: WinMgmt) (EventID: 10) (User: )
Description: Event filter with query "SELECT * FROM __InstanceModificationEvent WITHIN 60 WHERE TargetInstance ISA "Win32_Processor" AND TargetInstance.LoadPercentage > 99" could not be reactivated in namespace "//./root/CIMV2" because of error 0x80041003. Events cannot be delivered through this filter until the problem is corrected.
Error: (07/02/2021 09:31:22 PM) (Source: Application Error) (EventID: 1000) (User: )
Description: Faulting application name: makecab.exe, version: 6.1.7600.16385, time stamp: 0x4a5bc17e
Faulting module name: ntdll.dll, version: 6.1.7601.24545, time stamp: 0x5e0eb67f
Exception code: 0xc0000005
Fault offset: 0x0000000000032ad4
Faulting process id: 0x10a8
Faulting application start time: 0x01d76fbbe4845eea
Faulting application path: C:\Windows\system32\makecab.exe
Faulting module path: C:\Windows\SYSTEM32\ntdll.dll
Report Id: 22adf378-dbaf-11eb-91f2-10bf487beddf
Error: (07/02/2021 09:05:07 PM) (Source: Application Error) (EventID: 1000) (User: )
Description: Faulting application name: makecab.exe, version: 6.1.7600.16385, time stamp: 0x4a5bc17e
Faulting module name: ntdll.dll, version: 6.1.7601.24545, time stamp: 0x5e0eb67f
Exception code: 0xc0000005
Fault offset: 0x0000000000032ad4
Faulting process id: 0x28b4
Faulting application start time: 0x01d76fb8391ea953
Faulting application path: C:\Windows\system32\makecab.exe
Faulting module path: C:\Windows\SYSTEM32\ntdll.dll
Report Id: 77e6ca22-dbab-11eb-91f2-10bf487beddf
Error: (07/02/2021 11:04:44 AM) (Source: Application Error) (EventID: 1000) (User: )
Description: Faulting application name: makecab.exe, version: 6.1.7600.16385, time stamp: 0x4a5bc17e
Faulting module name: ntdll.dll, version: 6.1.7601.24545, time stamp: 0x5e0eb67f
Exception code: 0xc0000005
Fault offset: 0x0000000000032ad4
Faulting process id: 0x21f8
Faulting application start time: 0x01d76f645a1cd8f0
Faulting application path: C:\Windows\system32\makecab.exe
Faulting module path: C:\Windows\SYSTEM32\ntdll.dll
Report Id: 987f3193-db57-11eb-91f2-10bf487beddf