Windows 10: .NET Runtime Event 1026 then followed by taskhostw.exe Application Error Event 1000

I have filed several problem reports already about the taskhostw.exe Application Error Event 1000 which I have had no help and now just before I get the error I am now getting .NET Runtime Event 1026. I am not the only one that is getting these errors. This did not start happening until after my 5/30/19 v1903 update and the installation of KB4495620 Cumulative Update for .NET Framework 3.5 and 4.8 for Windows 10, version 1903 and June 11, 2019—KB4503293 (OS Build 18362.175) . This needs to be investigated by MS engineers and a fix deployed. I have run SFC, all three DISM's and no problems detected. I have also ran Malwarebytes scan, Norton full scan and malware scan and all are negative. I have also filed a problem report through the Feedback Hub.

Regards


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Log Name: Application

Source: .NET Runtime

Date: 6/23/2019 12:51:50 PM

Event ID: 1026

Task Category: None

Level: Error

Keywords: Classic

User: N/A

Computer: DESKTOP-JE8LEU6

Description:

Application: taskhostw.exe

Framework Version: v4.0.30319

Description: The process was terminated due to an unhandled exception.

Exception Info: exception code c0000005, exception address 00007FF930667B22



Event Xml:

<Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event">

<System>

<Provider Name=".NET Runtime" />

<EventID Qualifiers="0">1026</EventID>

<Level>2</Level>

<Task>0</Task>

<Keywords>0x80000000000000</Keywords>

<TimeCreated SystemTime="2019-06-23T16:51:50.829594500Z" />

<EventRecordID>6850</EventRecordID>

<Channel>Application</Channel>

<Computer>DESKTOP-JE8LEU6</Computer>

<Security />

</System>

<EventData>

<Data>Application: taskhostw.exe

Framework Version: v4.0.30319

Description: The process was terminated due to an unhandled exception.

Exception Info: exception code c0000005, exception address 00007FF930667B22

</Data>

</EventData>

</Event>



-----------------------------------------------------------------------

“Right after this error I get the below error with it now”

------------------------------------------------------------------------



Log Name: Application

Source: Application Error

Date: 6/23/2019 12:51:51 PM

Event ID: 1000

Task Category: (100)

Level: Error

Keywords: Classic

User: N/A

Computer: DESKTOP-JE8LEU6

Description:

Faulting application name: taskhostw.exe, version: 10.0.18362.1, time stamp: 0xe9bfb510

Faulting module name: unbcl.dll, version: 10.0.18362.1, time stamp: 0xe593abbb

Exception code: 0xc0000005

Fault offset: 0x0000000000047b22

Faulting process id: 0x1de0

Faulting application start time: 0x01d529ac8b773cf2

Faulting application path: C:\WINDOWS\system32\taskhostw.exe

Faulting module path: C:\WINDOWS\system32\oobe\unbcl.dll

Report Id: d8d5b9b2-3c38-4a42-9747-75a7a8b4fed1

Faulting package full name:

Faulting package-relative application ID:

Event Xml:

<Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event">

<System>

<Provider Name="Application Error" />

<EventID Qualifiers="0">1000</EventID>

<Level>2</Level>

<Task>100</Task>

<Keywords>0x80000000000000</Keywords>

<TimeCreated SystemTime="2019-06-23T16:51:51.769541000Z" />

<EventRecordID>6851</EventRecordID>

<Channel>Application</Channel>

<Computer>DESKTOP-JE8LEU6</Computer>

<Security />

</System>

<EventData>

<Data>taskhostw.exe</Data>

<Data>10.0.18362.1</Data>

<Data>e9bfb510</Data>

<Data>unbcl.dll</Data>

<Data>10.0.18362.1</Data>

<Data>e593abbb</Data>

<Data>c0000005</Data>

<Data>0000000000047b22</Data>

<Data>1de0</Data>

<Data>01d529ac8b773cf2</Data>

<Data>C:\WINDOWS\system32\taskhostw.exe</Data>

<Data>C:\WINDOWS\system32\oobe\unbcl.dll</Data>

<Data>d8d5b9b2-3c38-4a42-9747-75a7a8b4fed1</Data>

<Data>

</Data>

<Data>

</Data>

</EventData>

</Event>

:)

 

.NET Runtime Error 1026, Application crashes immediately.

Same problem here.

Please see following thread: .NET Runtime 1026, Application Error 1000, DistributedCOM 10010

 

.NET Runtime error 1026

Hi Greg,





Your concern with getting a .net runtime error code 1026 needs an in-depth technical assistance. We recommend posting your concern to our
TechNet Forum. It is a community of IT professionals
and Network specialist who can best address your concern.



If you have other question, feel free to reach out to us.

 

Multiple "Powershell has stopped working" events


A friend is getting many Powershell errors



Often 20 or more interruptions per session.

The Application Event log shows many sets of 4 events
Error 22/03/2018 13:05:08 Application Error 1000 (100)
Error 22/03/2018 13:05:08 Application Error 1000 (100)
Error 22/03/2018 13:05:08 .NET Runtime 1026 None
Error 22/03/2018 13:05:08 .NET Runtime 1026 None
We simply close the window and carry on until next annoying interruption...
Everything else works OK

Diagnosis actions to date:
I have run CHKDSK C: /F /R with no errors. I have NOT (yet) run SFC

I've attached a text file with the event log text.
The base event always seems to be a .NET Runtime error
Faulting module name: ntdll.dll
Exception code: 0xc0000005

The problems occur on a friend's system - spec as follows

Win 10 v1709 64bit latest build
1 x 120 GB SSD as system disk
1 x 1TB HDD for data
Intel core i5-3210M @ 2.5GHz 6GB RAM
Dell Inspiron 17 motherboard

Any suggestions to fix this problem will be very welcome.
I hope I don't have to rebuild the system from scratch.

PShell error log.txt