Host Process For Windows Taskhostw.exe Stopped Working: Event ID 1000

I did not know that was you but I am glad you are free of that error. I am still free of mine. This has to be right up there with the strangest error. I was going to mark this as resolved but what do you think. Should I keep it open a while longer?

Well, it wasn't me who posted the 'Look familiar?...' post. I still don't understand what that meant :).

Personally, I wouldn't mark it as resolved - simply because a resolution that causes users to have to reinstall the OS using the Media Creation Tool isn't really a solution.

In that very long article I posted elsewhere (so I could try and get all the solutions into one place for people searching for a resolution), my conclusion was that there are multiple problems and Microsoft still haven't fixed it.

So, might be best to let Microsoft still work on a solution for the thousands and thousands of people who haven't yet had the problem sorted through an update/patch.

And, finally, I've not seen Camilla all week - hope her computer's still working :).

Hi, Don,

Would you do me a favour and try something for me? I have already run the "sfc /scannow" in Powershell with Administrator Rights but decided to do it again - I was thinking about the new feature in the Security Centre that came with 1903 that didn't install by default and both my wife and I had some strange stuff happen with it.

Today, when I ran "sfc /scannow", I got errors that could not be resolved because the image library was corrupt. In the CBS.Log (location at the end of the Powershell text), all the predominant errors were Windows Defender based.

Both my wife and I both got this problem cos I've just run sfc /scannow on hers with identical results.

As you're having the same errors, would you see if you get what I've just got?

I've resolved the issues but am curious in case this is a consequence of what we're all experiencing.

Thanks

Lee

Hello Camilla. No it does not sound like a solution. I think you will have more problems than you do now with this error if you do that. This is a fix that MS has to address and deploy a fix and I know they are looking into it. There are to many members here having this problem. You have to be careful of some of the information being handed out. My advice Carmilla is to just wait for the fix. I am still getting them every other day but thankfully I have not seen any problems with my computer. A Developer said the reason it is happening is that a task is scheduled to run every other day but something is preventing it and thus it crashes. Reinstall/repair windows with media creation tool is not the answer and you could lose valuable files. It is also a long process.  I will let you know if I see or hear anything. Here is a link to another thread about this https://answers.microsoft.com/en-us/windows/forum/all/host-process-for-windows-tasks-stopped-working/3133b1f2-1512-4511-8342-b7a2e163c869 if you want to read the comments.

See you later.

Don

Two more of the same Taskhost.exe errors seen today. This is an every two to three day routine with these errors. See info below.

Log Name:      Application

Source:        Application Error

Date:          6/27/2019 6:36:21 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: 0x278c

Faulting application start time: 0x01d52d38bd65ffd2

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

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

Report Id: c92c3493-b136-4bac-837c-2e62c5c922f4

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="2019-06-27T22:36:21.507580200Z" />

    <EventRecordID>7844</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>278c</Data>

    <Data>01d52d38bd65ffd2</Data>

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

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

    <Data>c92c3493-b136-4bac-837c-2e62c5c922f4</Data>

    <Data>

    </Data>

    <Data>

    </Data>

  </EventData>

</Event>

Version=1

EventType=APPCRASH

EventTime=132061485816085341

ReportType=2

Consent=1

UploadTime=132061485817571428

ReportStatus=268435456

ReportIdentifier=33b4ee19-339e-4fc3-a11c-c534cb8c844a

IntegratorReportIdentifier=c92c3493-b136-4bac-837c-2e62c5c922f4

Wow64Host=34404

NsAppName=taskhostw.exe

OriginalFilename=taskhostw.exe

AppSessionGuid=0000278c-0000-003c-d2ff-65bd382dd501

TargetAppId=W:0000f519feec486de87ed73cb92d3cac802400000000!000030a630dd89b9565e4261891cf5b27244f1353bdd!taskhostw.exe

TargetAppVer=2094//04//09:12:37:36!207e3!taskhostw.exe

BootId=4294967295

ServiceSplit=4246204721

TargetAsId=2290

IsFatal=1

EtwNonCollectReason=4

Response.BucketId=bc35effd0d0ebd0863848b41635acba6

Response.BucketTable=4

Response.LegacyBucketId=1406402096602467238

Response.type=4

Sig[0].Name=Application Name

Sig[0].Value=taskhostw.exe

Sig[1].Name=Application Version

Sig[1].Value=10.0.18362.1

Sig[2].Name=Application Timestamp

Sig[2].Value=e9bfb510

Sig[3].Name=Fault Module Name

Sig[3].Value=unbcl.dll

Sig[4].Name=Fault Module Version

Sig[4].Value=10.0.18362.1

Sig[5].Name=Fault Module Timestamp

Sig[5].Value=e593abbb

Sig[6].Name=Exception Code

Sig[6].Value=c0000005

Sig[7].Name=Exception Offset

Sig[7].Value=0000000000047b22

DynamicSig[1].Name=OS Version

DynamicSig[1].Value=10.0.18362.2.0.0.768.101

DynamicSig[2].Name=Locale ID

DynamicSig[2].Value=1033

DynamicSig[22].Name=Additional Information 1

DynamicSig[22].Value=8f64

DynamicSig[23].Name=Additional Information 2

DynamicSig[23].Value=8f64a98f51ee7a1658f393b52b9cfd78

DynamicSig[24].Name=Additional Information 3

DynamicSig[24].Value=638a

DynamicSig[25].Name=Additional Information 4

DynamicSig[25].Value=638a1d22f84447604d2e55bcb40f315c

UI[2]=C:\WINDOWS\system32\taskhostw.exe

UI[5]=Check online for a solution (recommended)

UI[6]=Check for a solution later (recommended)

UI[7]=Close

UI[8]=Host Process for Windows Tasks stopped working and was closed

UI[9]=A problem caused the application to stop working correctly. Windows will notify you if a solution is available.

UI[10]=&Close

LoadedModule[0]=C:\WINDOWS\system32\taskhostw.exe

LoadedModule[1]=C:\WINDOWS\SYSTEM32\ntdll.dll

LoadedModule[2]=C:\WINDOWS\System32\KERNEL32.DLL

LoadedModule[3]=C:\WINDOWS\System32\KERNELBASE.dll

LoadedModule[4]=C:\WINDOWS\System32\msvcrt.dll

LoadedModule[5]=C:\WINDOWS\System32\RPCRT4.dll

LoadedModule[6]=C:\WINDOWS\System32\combase.dll

LoadedModule[7]=C:\WINDOWS\System32\ucrtbase.dll

LoadedModule[8]=C:\WINDOWS\System32\bcryptPrimitives.dll

LoadedModule[9]=C:\WINDOWS\System32\OLEAUT32.dll

LoadedModule[10]=C:\WINDOWS\System32\msvcp_win.dll

LoadedModule[11]=C:\WINDOWS\System32\imm32.dll

LoadedModule[12]=C:\WINDOWS\System32\USER32.dll

LoadedModule[13]=C:\WINDOWS\System32\win32u.dll

LoadedModule[14]=C:\WINDOWS\System32\GDI32.dll

LoadedModule[15]=C:\WINDOWS\System32\gdi32full.dll

LoadedModule[16]=C:\WINDOWS\System32\kernel.appcore.dll

LoadedModule[17]=C:\WINDOWS\System32\sechost.dll

LoadedModule[18]=C:\WINDOWS\System32\clbcatq.dll

LoadedModule[19]=C:\WINDOWS\system32\DeviceDirectoryClient.dll

LoadedModule[20]=C:\WINDOWS\System32\UMPDC.dll

LoadedModule[21]=C:\WINDOWS\System32\shcore.dll

LoadedModule[22]=C:\WINDOWS\System32\powrprof.dll

LoadedModule[23]=C:\WINDOWS\system32\MdmCommon.DLL

LoadedModule[24]=C:\WINDOWS\System32\cryptsp.dll

LoadedModule[25]=C:\WINDOWS\System32\CRYPT32.dll

LoadedModule[26]=C:\WINDOWS\System32\MSASN1.dll

LoadedModule[27]=C:\WINDOWS\system32\PROPSYS.dll

LoadedModule[28]=C:\WINDOWS\system32\samcli.dll

LoadedModule[29]=C:\WINDOWS\system32\netutils.dll

LoadedModule[30]=C:\WINDOWS\system32\WINHTTP.dll

LoadedModule[31]=C:\WINDOWS\SYSTEM32\rmclient.dll

LoadedModule[32]=C:\WINDOWS\SYSTEM32\policymanager.dll

LoadedModule[33]=C:\WINDOWS\System32\advapi32.dll

LoadedModule[34]=C:\WINDOWS\system32\msvcp110_win.dll

LoadedModule[35]=C:\Windows\System32\Windows.Web.dll

LoadedModule[36]=C:\Windows\System32\iertutil.dll

LoadedModule[37]=C:\WINDOWS\System32\IDStore.dll

LoadedModule[38]=C:\WINDOWS\System32\bcrypt.dll

LoadedModule[39]=C:\WINDOWS\System32\SAMLIB.dll

LoadedModule[40]=C:\WINDOWS\System32\wlidprov.dll

LoadedModule[41]=C:\Windows\System32\LocationFrameworkInternalPS.dll

LoadedModule[42]=C:\Windows\System32\LocationFrameworkPS.dll

LoadedModule[43]=C:\Windows\System32\wuapi.dll

LoadedModule[44]=C:\Windows\System32\wups.dll

LoadedModule[45]=C:\WINDOWS\system32\oobe\SetupCleanupTask.dll

LoadedModule[46]=C:\WINDOWS\System32\WINTRUST.dll

LoadedModule[47]=C:\WINDOWS\SYSTEM32\WDSCORE.dll

LoadedModule[48]=C:\WINDOWS\SYSTEM32\VERSION.dll

LoadedModule[49]=C:\WINDOWS\SYSTEM32\WTSAPI32.dll

LoadedModule[50]=C:\WINDOWS\system32\oobe\unbcl.dll

LoadedModule[51]=C:\WINDOWS\System32\OLE32.dll

LoadedModule[52]=C:\WINDOWS\system32\dbghelp.dll

LoadedModule[53]=C:\WINDOWS\system32\dbgcore.DLL

State[0].Key=Transport.DoneStage1

State[0].Value=1

OsInfo[0].Key=vermaj

OsInfo[0].Value=10

OsInfo[1].Key=vermin

OsInfo[1].Value=0

OsInfo[2].Key=verbld

OsInfo[2].Value=18362

OsInfo[3].Key=ubr

OsInfo[3].Value=175

OsInfo[4].Key=versp

OsInfo[4].Value=0

OsInfo[5].Key=arch

OsInfo[5].Value=9

OsInfo[6].Key=lcid

OsInfo[6].Value=1033

OsInfo[7].Key=geoid

OsInfo[7].Value=244

OsInfo[8].Key=sku

OsInfo[8].Value=101

OsInfo[9].Key=domain

OsInfo[9].Value=0

OsInfo[10].Key=prodsuite

OsInfo[10].Value=768

OsInfo[11].Key=ntprodtype

OsInfo[11].Value=1

OsInfo[12].Key=platid

OsInfo[12].Value=10

OsInfo[13].Key=sr

OsInfo[13].Value=0

OsInfo[14].Key=tmsi

OsInfo[14].Value=40249

OsInfo[15].Key=osinsty

OsInfo[15].Value=1

OsInfo[16].Key=iever

OsInfo[16].Value=11.175.18362.0-11.0.130

OsInfo[17].Key=portos

OsInfo[17].Value=0

OsInfo[18].Key=ram

OsInfo[18].Value=16319

OsInfo[19].Key=svolsz

OsInfo[19].Value=919

OsInfo[20].Key=wimbt

OsInfo[20].Value=0

OsInfo[21].Key=blddt

OsInfo[21].Value=190318

OsInfo[22].Key=bldtm

OsInfo[22].Value=1202

OsInfo[23].Key=bldbrch

OsInfo[23].Value=19h1_release

OsInfo[24].Key=bldchk

OsInfo[24].Value=0

OsInfo[25].Key=wpvermaj

OsInfo[25].Value=0

OsInfo[26].Key=wpvermin

OsInfo[26].Value=0

OsInfo[27].Key=wpbuildmaj

OsInfo[27].Value=0

OsInfo[28].Key=wpbuildmin

OsInfo[28].Value=0

OsInfo[29].Key=osver

OsInfo[29].Value=10.0.18362.175.amd64fre.19h1_release.190318-1202

OsInfo[30].Key=buildflightid

OsInfo[30].Value=2ABBFE8A-57A7-4ECE-870E-2008A39B7D9D.1

OsInfo[31].Key=edition

OsInfo[31].Value=Core

OsInfo[32].Key=ring

OsInfo[32].Value=Retail

OsInfo[33].Key=expid

OsInfo[33].Value=RS:362F

OsInfo[34].Key=containerid

OsInfo[35].Key=containertype

OsInfo[36].Key=edu

OsInfo[36].Value=0

FriendlyEventName=Stopped working

ConsentKey=APPCRASH

AppName=Host Process for Windows Tasks

AppPath=C:\WINDOWS\system32\taskhostw.exe

NsPartner=windows

NsGroup=windows8

ApplicationIdentity=BD8F58D832D9F05162A8A1E18B36CC06

MetadataHash=-2004080940

Hi,

Thank you for writing to Microsoft Community forums.

I see that the faulting module is: C:\WINDOWS\system32\oobe\unbcl.dll. Unbcl.dll is an unmanaged base library. This issue could be caused due to errors in .Net Framework.

Though you have run the System file checker, we would like to know if any integrity violations were returned by SFC scan. Ideally, SFC scan should be able to fix this issue, but since taskhostw process is still throwing the error, I would suggest to try repairing the .Net Framework and let us know the results. Please follow the steps given below.

• Open the Run dialog box by pressing the Windows key and R together.
• Type APPWIZ.CPL and hit the Enter key to open the Programs and features window.
• Click on Turn Windows features on or off.
• Locate and uncheck the checkboxes for .Net framework 3.5 and .Net framework 4.8 Advanced Services.
• Reboot the computer, re-enable the .Net frameworks and let us know if it fixes the issue.

Awaiting your response.

Regards,

Peer Samie

Microsoft Community-Moderator