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

Anonymous

I noticed upon checking my Event Log Applications and my Reliability Monitor I have been getting this critical error about every 2 to 3 days now on my HP Omen i7 -16 GB Mem - Nvidia GEForce GTX 1070 on Win10 Home 64 bit and this did not start happening until I updated to v1903 on May 30^th^ . My build is 18362.239. Could someone please advise me as how to resolve this or MS deploy a fix for this. It appears I am not the only one getting these. I have reported this through the Feedback Hub. I have run all three DISMs, SFC, Malwarebytes, Norton and I turned on Windows Defender long enough for a quick scan and no problems seen. It appears this is a scheduled task that keeps failing instead of running to completion.

Log Name: Application

Source: Application Error

Date: 6/18/2019 3:04:17 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: 0x2ea4

Faulting application start time: 0x01d525fefbf28b71

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

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

Report Id: e2410c03-f6bf-462a-8545-72d8480a85b4

Faulting package full name:

Faulting package-relative application ID:

Event Xml:

<Channel>Application</Channel>

<Computer>DESKTOP-JE8LEU6</Computer>

</System>

<Data>taskhostw.exe</Data>

<Data>unbcl.dll</Data>

<Data>01d525fefbf28b71</Data>

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

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

<Data>

</Data>

<Data>

</Data>

</EventData>

</Event>

This below is from Notepad about this error

Version=1

EventType=APPCRASH

EventTime=132053582578193450

ReportType=2

Consent=1

UploadTime=132053582584574055

ReportStatus=268435456

ReportIdentifier=00f879cd-2e56-43f0-a4c8-3daabf334e23

IntegratorReportIdentifier=e2410c03-f6bf-462a-8545-72d8480a85b4

Wow64Host=34404

NsAppName=taskhostw.exe

OriginalFilename=taskhostw.exe

AppSessionGuid=00002ea4-0000-0023-718b-f2fbfe25d501

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

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

BootId=4294967295

ServiceSplit=1778118961

TargetAsId=4327

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\netutils.dll

LoadedModule[29]=C:\WINDOWS\system32\samcli.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\oobe\unbcl.dll

LoadedModule[50]=C:\WINDOWS\System32\OLE32.dll

LoadedModule[51]=C:\WINDOWS\SYSTEM32\WTSAPI32.dll

LoadedModule[52]=C:\Windows\System32\UpdatePolicy.dll

LoadedModule[53]=C:\WINDOWS\System32\profapi.dll

LoadedModule[54]=C:\Windows\System32\Cabinet.dll

LoadedModule[55]=C:\Windows\System32\usoapi.dll

LoadedModule[56]=C:\WINDOWS\system32\wbem\wbemprox.dll

LoadedModule[57]=C:\WINDOWS\System32\WS2_32.dll

LoadedModule[58]=C:\WINDOWS\SYSTEM32\wbemcomn.dll

LoadedModule[59]=C:\WINDOWS\system32\wbem\wbemsvc.dll

LoadedModule[60]=C:\WINDOWS\system32\wbem\fastprox.dll

LoadedModule[61]=C:\WINDOWS\SYSTEM32\amsi.dll

LoadedModule[62]=C:\WINDOWS\SYSTEM32\USERENV.dll

LoadedModule[63]=C:\Windows\System32\FlightSettings.dll

LoadedModule[64]=C:\WINDOWS\System32\cfgmgr32.dll

LoadedModule[65]=C:\Windows\System32\bcd.dll

LoadedModule[66]=C:\Windows\System32\wosc.dll

LoadedModule[67]=C:\Windows\System32\Windows.Networking.Connectivity.dll

LoadedModule[68]=C:\WINDOWS\System32\npmproxy.dll

LoadedModule[69]=C:\Windows\System32\WinTypes.dll

LoadedModule[70]=C:\Windows\System32\IPHLPAPI.DLL

LoadedModule[71]=C:\WINDOWS\System32\NSI.dll

LoadedModule[72]=C:\Windows\System32\dusmapi.dll

LoadedModule[73]=C:\WINDOWS\System32\windows.storage.dll

LoadedModule[74]=C:\WINDOWS\System32\shlwapi.dll

LoadedModule[75]=C:\WINDOWS\system32\configmanager2.dll

LoadedModule[76]=C:\WINDOWS\system32\DMCmnUtils.dll

LoadedModule[77]=C:\WINDOWS\system32\dmiso8601utils.dll

LoadedModule[78]=C:\WINDOWS\system32\DMOleAutUtils.dll

LoadedModule[79]=C:\WINDOWS\system32\enterpriseresourcemanager.dll

LoadedModule[80]=C:\WINDOWS\system32\dmEnrollEngine.DLL

LoadedModule[81]=C:\WINDOWS\system32\XmlLite.dll

LoadedModule[82]=C:\WINDOWS\system32\DEVOBJ.dll

LoadedModule[83]=C:\Windows\System32\Windows.Devices.Sensors.dll

LoadedModule[84]=C:\Windows\System32\BiWinrt.dll

LoadedModule[85]=C:\Windows\System32\Windows.Graphics.dll

LoadedModule[86]=C:\Windows\System32\Windows.Devices.Enumeration.dll

LoadedModule[87]=C:\WINDOWS\System32\StructuredQuery.dll

LoadedModule[88]=C:\WINDOWS\System32\MSWB7.dll

LoadedModule[89]=C:\Windows\System32\DevDispItemProvider.dll

LoadedModule[90]=C:\Windows\System32\DDORes.dll

LoadedModule[91]=C:\Windows\System32\DefaultDeviceManager.dll

LoadedModule[92]=C:\WINDOWS\SYSTEM32\dxcore.dll

LoadedModule[93]=C:\WINDOWS\System32\imagehlp.dll

LoadedModule[94]=C:\WINDOWS\system32\rsaenh.dll

LoadedModule[95]=C:\WINDOWS\system32\CRYPTBASE.dll

LoadedModule[96]=C:\WINDOWS\System32\Shell32.dll

LoadedModule[97]=C:\WINDOWS\system32\DdcComImplementationsDesktop.dll

LoadedModule[98]=C:\Windows\System32\taskschd.dll

LoadedModule[99]=C:\Windows\System32\SspiCli.dll

LoadedModule[100]=C:\WINDOWS\system32\dbghelp.dll

LoadedModule[101]=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=27077

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=-1351433430

Below are links to my reports in the Feedback Hub concerning this problem. Plese go and upvote this problem so the MS engineers can see this and take action.

https://aka.ms/AA5iyv5

https://aka.ms/AA5i6y8

https://aka.ms/AA5iev4

Locked Question. This question was migrated from the Microsoft Support Community. You can vote on whether it's helpful, but you can't add comments or replies or follow the question.

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167 answers

Anonymous

2019-07-14T16:59:39+00:00

Seems to have at least solved the Defender problem so thanks for that :-). Find it peculiar though since I ran them all 3 June and everything came back clean that day. But! I'm far from an expert in this field so I too rely on those with more expertise.

You state there is a new feature in Defender. Looks the same to me though so can you specify what new feature is there?

Mine came back clean when I first discovered the 'Host' critical error, too. I've no idea why a fair few of us have discovered the 'corruption' of some Defender files - but I was reading a few articles that suggested there were problems with 1903 and causing this error.

We found 'Host' cropped up days after 1903 - and our Windows Defender problem has, too. It probably won't resolve the main problem (as a poster suggested) but a few days should tell us.

The new feature in 1903 is 'Tamper Protection' (search for it in the search window in 'Settings' - Windows Key + I). When 1903 first installed, we got the dreaded yellow triangle which needed addressing in the two laptops that have the Host problem but *not* in the one that doesn't have it.
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Anonymous

2019-07-14T18:08:16+00:00

Seems to have at least solved the Defender problem so thanks for that :-). Find it peculiar though since I ran them all 3 June and everything came back clean that day. But! I'm far from an expert in this field so I too rely on those with more expertise.

You state there is a new feature in Defender. Looks the same to me though so can you specify what new feature is there?

Mine came back clean when I first discovered the 'Host' critical error, too. I've no idea why a fair few of us have discovered the 'corruption' of some Defender files - but I was reading a few articles that suggested there were problems with 1903 and causing this error.

We found 'Host' cropped up days after 1903 - and our Windows Defender problem has, too. It probably won't resolve the main problem (as a poster suggested) but a few days should tell us.

The new feature in 1903 is 'Tamper Protection' (search for it in the search window in 'Settings' - Windows Key + I). When 1903 first installed, we got the dreaded yellow triangle which needed addressing in the two laptops that have the Host problem but *not* in the one that doesn't have it.

Hello Camilla74 and Daknut,

Sorry for the late reply. I wanted to let you know that yesterday I noticed my system got a little lagging at times so I check my task manager and saw the Modules Installer using 100 % of my Disk and after a few minutes it calmed down. I checked my updates in settings and nothing installed and I checked event viewer and reliability monitor and nothing seen installed. Just by chance and a spur of the moment thought I ran SFC and noticed that it was taking much longer time to complete than it normally did. When it finished it found integrity violations and said it fixed some but could not fix all of them. Well my heart just sank as I knew there was nothing different, I have been doing nor have I been to any website that I normally do and did not open any email from anyone I did not know and I had not installed any Apps or programs. I looked into the SFC log and found the same thing you guys found concerning Windows Defender and there was a bunch of them. I thought what the **** as I do not even have Windows Defender turned as I use Norton Premium. So, I ran all three DISMS and when DISM with the Restore Health Option finished it said integrity violations can be repaired. I ran SFC again which evidently repaired all the integrity violations as the ones I saw in the log were now gone and the log was clean. I restarted my computer and when it settled in, I ran SFC again and it ran quickly with no violations. I have not seen any taskhost errors…..yet but with the schedule of failures I should see one today or tonight sometime. If I do not see any then evidently what we all have experienced is a fix. If that is the case then why didn’t MS inform everyone about this. Anyways since the encounter with the integrity violations and the fix of them my computer has been running very smoothly and screen turnover have been quick and my Apps open as soon as I click on them. I do not use quick boot but my boot time is noticeably quicker. The MS App store now opens mush faster with no spinning balls.

I truly thank Camilla74 and Daknut for their diligence and input on this problem. I hope that the repairs we made has solved this aggravating taskhostw.exe error. Let’s all continue to keep in close contact about this and let each other know if we see the error.

Respectfully,

Don
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Anonymous

2019-07-14T18:10:25+00:00

Hello again Daknut!

Ran all these:

•- DISM.exe /Online /Cleanup-image /Scanhealth

•- DISM.exe /Online /Cleanup-image /Restorehealth

•- DISM.exe /online /cleanup-image /startcomponentcleanup

•- sfc /scannow

Seems to have at least solved the Defender problem so thanks for that :-). Find it peculiar though since I ran them all 3 June and everything came back clean that day. But! I'm far from an expert in this field so I too rely on those with more expertise.

You state there is a new feature in Defender. Looks the same to me though so can you specify what new feature is there?

Hi Camilla,

Please see my response above to Daknut above.
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Anonymous

2019-07-14T19:39:54+00:00

Well, just got another 'Host' critical error. Rats!

You guys ran a fuller clean up than me so I'll wait to see if you get success and then I'll follow you.
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