Hi, I have a Windows Server 2008 R2 box that shows an error when Checking for updates. When I go to Windows update and push "Check for updates" I get a message saying: Error(s) found: Code 80072EE6 I checked that download.windowsuodate.com is reachable Any ideas?

Hi Gert_62 I was read a solucation about this error in an old thread, try this : Click "Start" Then Click "Run" Copy and Paste this " regsvr32 MSXML3.dll " Click "OK" You should see a dialog box stating that the operation has suceeded. Restart the computer Hope that's helpful

Hi Liyin, Thanx for your answer! I came across the same post but since this is a Server 2008 R2 box with Hyper-V hosting a whole bunch of critical guest servers running on it I want to know what I'm doing by executing this command. So do you know what this command does? What ddl am I registering? What is it doing? No other risk when doing that? If it would have been a test box I would just try it. But in this case I'd rather not. greetz

Hi Gert_62 Sorry for inconsiderately . So could you post the event log of this error here ,it can help understand and analyse the problem better, thanks

Hi, I would do that but it was not shown in an eventlog. It's just a message that appears when you click on "Check for updates" in the Windows Update window. The Windows Update message than says: - "Windows Could not search for new updates". - An error occured while checking for new updates for your computer. - Error(s) found: Code 80072EE6 Windows Update encountered an unknown error Btw I just found out yesterday when you choose the option "Check online for updates from Windows Update" in the same window it seems works fine. Can anyone tell me what "regsvr32 MSXML3.dll" exactely does and whether it is safe to do it on a production Hyper-V host?

Hi Gert_62 You just need post the relevant error log of Windows update 1Click Start, and then click Run. 2In the Open box, type windowsupdate.Log, and then click OK. The msxml3.dll is a component file of MSXML3 library. You can try to reinstall it to fix this issuer Visit the following Microsoft Web site: MSXML 4.0 Service Pack 3 http://www.microsoft.com/downloads/details.aspx?FamilyID=7F6C0CB4-7A5E-4790-A7CF-9E139E6819C0&displaylang=en How to read the Windowsupdate.log file http://support.microsoft.com/kb/902093 How to troubleshoot common Windows Update, Microsoft Update, and Windows Server Update Services installation issues http://support.microsoft.com/kb/906602 Hope that's helpful

I tried installing MSXML 4.0 SP1 on the machine. But it didn't solve the issue. Below you can find the log from today after I checked for update? I did a check for updates at 13:39. Below that I added a few other log lines before that as well. 2010-04-20 13:39:54:374 932 1304 AU Triggering AU detection through DetectNow API 2010-04-20 13:39:54:374 932 1304 AU Triggering Online detection (interactive) 2010-04-20 13:39:54:374 932 9ec AU ############# 2010-04-20 13:39:54:374 932 9ec AU ## START ## AU: Search for updates 2010-04-20 13:39:54:374 932 9ec AU ######### 2010-04-20 13:39:54:374 932 9ec AU <<## SUBMITTED ## AU: Search for updates [CallId = {859EE30D-0304-4464-AE74-DE01E5B0F36C}] 2010-04-20 13:39:54:374 932 1320 Agent ************* 2010-04-20 13:39:54:374 932 1320 Agent ** START ** Agent: Finding updates [CallerId = AutomaticUpdates] 2010-04-20 13:39:54:374 932 1320 Agent ********* 2010-04-20 13:39:54:374 932 1320 Agent * Online = Yes; Ignore download priority = No 2010-04-20 13:39:54:374 932 1320 Agent * Criteria = "IsInstalled=0 and DeploymentAction='Installation' or IsPresent=1 and DeploymentAction='Uninstallation' or IsInstalled=1 and DeploymentAction='Installation' and RebootRequired=1 or IsInstalled=0 and DeploymentAction='Uninstallation' and RebootRequired=1" 2010-04-20 13:39:54:374 932 1320 Agent * ServiceID = {3DA21691-E39D-4DA6-8A4B-B43877BCB1B7} Managed 2010-04-20 13:39:54:374 932 1320 Agent * Search Scope = {Machine} 2010-04-20 13:39:54:374 932 1320 Setup Checking for agent SelfUpdate 2010-04-20 13:39:54:374 932 1320 Setup Client version: Core: 7.3.7600.16385 Aux: 7.3.7600.16385 2010-04-20 13:39:54:374 932 1320 Misc Validating signature for C:\Windows\SoftwareDistribution\SelfUpdate\wuident.cab: 2010-04-20 13:39:54:389 932 1320 Misc Microsoft signed: Yes 2010-04-20 13:39:54:389 932 1320 Misc WARNING: WinHttp: WinHttpCrackUrl failed. error 0x80072ee6 2010-04-20 13:39:54:389 932 1320 Misc WARNING: WinHttp: Initialize failed with 0x80072ee6 2010-04-20 13:39:54:389 932 1320 Misc WARNING: WinHttp: WinHttpCrackUrl failed. error 0x80072ee6 2010-04-20 13:39:54:389 932 1320 Misc WARNING: WinHttp: Initialize failed with 0x80072ee6 2010-04-20 13:39:54:389 932 1320 Misc WARNING: WinHttp: WinHttpCrackUrl failed. error 0x80072ee6 2010-04-20 13:39:54:389 932 1320 Misc WARNING: WinHttp: Initialize failed with 0x80072ee6 2010-04-20 13:39:54:389 932 1320 Misc WARNING: WinHttp: WinHttpCrackUrl failed. error 0x80072ee6 2010-04-20 13:39:54:389 932 1320 Misc WARNING: WinHttp: Initialize failed with 0x80072ee6 2010-04-20 13:39:54:389 932 1320 Misc WARNING: DownloadFileInternal failed for AGR-SRV-WSUS/selfupdate/wuident.cab: error 0x80072ee6 2010-04-20 13:39:54:389 932 1320 Setup WARNING: SelfUpdate check failed to download package information, error = 0x80072EE6 2010-04-20 13:39:54:389 932 1320 Setup FATAL: SelfUpdate check failed, err = 0x80072EE6 2010-04-20 13:39:54:389 932 1320 Agent * WARNING: Skipping scan, self-update check returned 0x80072EE6 2010-04-20 13:39:54:389 932 1320 Agent * WARNING: Exit code = 0x80072EE6 2010-04-20 13:39:54:389 932 1320 Agent ********* 2010-04-20 13:39:54:389 932 1320 Agent ** END ** Agent: Finding updates [CallerId = AutomaticUpdates] 2010-04-20 13:39:54:389 932 1320 Agent ************* 2010-04-20 13:39:54:389 932 1320 Agent WARNING: WU client failed Searching for update with error 0x80072ee6 2010-04-20 13:39:54:389 932 860 AU >>## RESUMED ## AU: Search for updates [CallId = {859EE30D-0304-4464-AE74-DE01E5B0F36C}] 2010-04-20 13:39:54:389 932 860 AU # WARNING: Search callback failed, result = 0x80072EE6 2010-04-20 13:39:54:389 932 860 AU # WARNING: Failed to find updates with error code 80072EE6 2010-04-20 13:39:54:389 932 860 AU ######### 2010-04-20 13:39:54:389 932 860 AU ## END ## AU: Search for updates [CallId = {859EE30D-0304-4464-AE74-DE01E5B0F36C}] 2010-04-20 13:39:54:389 932 860 AU ############# 2010-04-20 13:39:54:389 932 860 AU Successfully wrote event for AU health state:0 2010-04-20 13:39:54:389 932 860 AU AU setting next detection timeout to 2010-04-20 16:39:54 2010-04-20 13:39:54:389 932 860 AU Successfully wrote event for AU health state:0 2010-04-20 13:39:54:389 932 860 AU Successfully wrote event for AU health state:0 2010-04-20 13:39:59:397 932 1320 Report REPORT EVENT: {741C8C46-3179-401C-A2F1-1697349B6F0E} 2010-04-20 13:39:54:389+0200 1 148 101 {D67661EB-2423-451D-BF5D-13199E37DF28} 1 80072ee6 SelfUpdate Failure Software Synchronization Windows Update Client failed to detect with error 0x80072ee6. 2010-04-20 13:39:59:397 932 1320 Report CWERReporter::HandleEvents - WER report upload completed with status 0x8 2010-04-20 13:39:59:397 932 1320 Report WER Report sent: 7.3.7600.16385 0x80072ee6 D67661EB-2423-451D-BF5D-13199E37DF28 Scan 101 Managed 2010-04-20 13:39:59:397 932 1320 Report CWERReporter finishing event handling. (00000000) Part of the log before that: 2010-04-20 12:41:32:654 932 590 PT WARNING: PTError: 0x80072ee6 2010-04-20 12:41:32:654 932 590 PT WARNING: Initialization failed for Protocol Talker Context: 0x80072ee6 2010-04-20 12:41:32:654 932 590 Report WARNING: Reporter failed to upload events with hr = 80072ee6. 2010-04-20 12:47:35:027 932 9ec AU ############# 2010-04-20 12:47:35:027 932 9ec AU ## START ## AU: Search for updates 2010-04-20 12:47:35:027 932 9ec AU ######### 2010-04-20 12:47:35:027 932 9ec AU <<## SUBMITTED ## AU: Search for updates [CallId = {EC4FD2F6-5BB1-440D-84A9-FB1574352B9F}] 2010-04-20 12:47:35:027 932 590 Agent ************* 2010-04-20 12:47:35:027 932 590 Agent ** START ** Agent: Finding updates [CallerId = AutomaticUpdates] 2010-04-20 12:47:35:027 932 590 Agent ********* 2010-04-20 12:47:35:027 932 590 Agent * Online = Yes; Ignore download priority = No 2010-04-20 12:47:35:027 932 590 Agent * Criteria = "IsInstalled=0 and DeploymentAction='Installation' or IsPresent=1 and DeploymentAction='Uninstallation' or IsInstalled=1 and DeploymentAction='Installation' and RebootRequired=1 or IsInstalled=0 and DeploymentAction='Uninstallation' and RebootRequired=1" 2010-04-20 12:47:35:027 932 590 Agent * ServiceID = {3DA21691-E39D-4DA6-8A4B-B43877BCB1B7} Managed 2010-04-20 12:47:35:027 932 590 Agent * Search Scope = {Machine} 2010-04-20 12:47:35:027 932 590 Setup Checking for agent SelfUpdate 2010-04-20 12:47:35:043 932 590 Setup Client version: Core: 7.3.7600.16385 Aux: 7.3.7600.16385 2010-04-20 12:47:35:043 932 590 Misc Validating signature for C:\Windows\SoftwareDistribution\SelfUpdate\wuident.cab: 2010-04-20 12:47:35:059 932 590 Misc Microsoft signed: Yes 2010-04-20 12:47:35:059 932 590 Misc WARNING: WinHttp: WinHttpCrackUrl failed. error 0x80072ee6 2010-04-20 12:47:35:059 932 590 Misc WARNING: WinHttp: Initialize failed with 0x80072ee6 2010-04-20 12:47:35:059 932 590 Misc WARNING: WinHttp: WinHttpCrackUrl failed. error 0x80072ee6 2010-04-20 12:47:35:059 932 590 Misc WARNING: WinHttp: Initialize failed with 0x80072ee6 2010-04-20 12:47:35:059 932 590 Misc WARNING: WinHttp: WinHttpCrackUrl failed. error 0x80072ee6 2010-04-20 12:47:35:059 932 590 Misc WARNING: WinHttp: Initialize failed with 0x80072ee6 2010-04-20 12:47:35:059 932 590 Misc WARNING: WinHttp: WinHttpCrackUrl failed. error 0x80072ee6 2010-04-20 12:47:35:059 932 590 Misc WARNING: WinHttp: Initialize failed with 0x80072ee6 2010-04-20 12:47:35:059 932 590 Misc WARNING: DownloadFileInternal failed for AGR-SRV-WSUS/selfupdate/wuident.cab: error 0x80072ee6 2010-04-20 12:47:35:059 932 590 Setup WARNING: SelfUpdate check failed to download package information, error = 0x80072EE6 2010-04-20 12:47:35:059 932 590 Setup FATAL: SelfUpdate check failed, err = 0x80072EE6 2010-04-20 12:47:35:059 932 590 Agent * WARNING: Skipping scan, self-update check returned 0x80072EE6 2010-04-20 12:47:35:074 932 590 Agent * WARNING: Exit code = 0x80072EE6 2010-04-20 12:47:35:074 932 590 Agent ********* 2010-04-20 12:47:35:074 932 590 Agent ** END ** Agent: Finding updates [CallerId = AutomaticUpdates] 2010-04-20 12:47:35:074 932 590 Agent ************* 2010-04-20 12:47:35:074 932 590 Agent WARNING: WU client failed Searching for update with error 0x80072ee6 2010-04-20 12:47:35:074 932 13e8 AU >>## RESUMED ## AU: Search for updates [CallId = {EC4FD2F6-5BB1-440D-84A9-FB1574352B9F}] 2010-04-20 12:47:35:074 932 13e8 AU # WARNING: Search callback failed, result = 0x80072EE6 2010-04-20 12:47:35:074 932 13e8 AU # WARNING: Failed to find updates with error code 80072EE6 2010-04-20 12:47:35:074 932 13e8 AU ######### 2010-04-20 12:47:35:074 932 13e8 AU ## END ## AU: Search for updates [CallId = {EC4FD2F6-5BB1-440D-84A9-FB1574352B9F}] 2010-04-20 12:47:35:074 932 13e8 AU ############# 2010-04-20 12:47:35:074 932 13e8 AU Successfully wrote event for AU health state:0 2010-04-20 12:47:35:074 932 13e8 AU AU setting next detection timeout to 2010-04-20 15:47:35 2010-04-20 12:47:35:074 932 13e8 AU Successfully wrote event for AU health state:0 2010-04-20 12:47:35:074 932 13e8 AU Successfully wrote event for AU health state:0 2010-04-20 12:47:40:066 932 590 Report REPORT EVENT: {B7F9094C-3FE2-4629-9B1A-1E4DB1DB51F3} 2010-04-20 12:47:35:059+0200 1 148 101 {D67661EB-2423-451D-BF5D-13199E37DF28} 1 80072ee6 SelfUpdate Failure Software Synchronization Windows Update Client failed to detect with error 0x80072ee6. 2010-04-20 12:47:40:129 932 590 Report CWERReporter::HandleEvents - WER report upload completed with status 0x8 2010-04-20 12:47:40:129 932 590 Report WER Report sent: 7.3.7600.16385 0x80072ee6 D67661EB-2423-451D-BF5D-13199E37DF28 Scan 101 Managed 2010-04-20 12:47:40:129 932 590 Report CWERReporter finishing event handling. (00000000) 2010-04-20 12:56:45:669 932 590 PT WARNING: PTError: 0x80072ee6 2010-04-20 12:56:45:669 932 590 PT WARNING: Initialization failed for Protocol Talker Context: 0x80072ee6 2010-04-20 12:56:45:669 932 590 Report WARNING: Reporter failed to upload events with hr = 80072ee6. 2010-04-20 13:08:56:682 932 590 PT WARNING: PTError: 0x80072ee6 2010-04-20 13:08:56:682 932 590 PT WARNING: Initialization failed for Protocol Talker Context: 0x80072ee6 2010-04-20 13:08:56:682 932 590 Report WARNING: Reporter failed to upload events with hr = 80072ee6. 2010-04-20 13:08:56:682 932 590 Report WARNING: Discarding a batch of 1 events because they have expired. 2010-04-20 13:08:56:698 932 590 PT WARNING: PTError: 0x80072ee6 2010-04-20 13:08:56:698 932 590 PT WARNING: Initialization failed for Protocol Talker Context: 0x80072ee6 2010-04-20 13:08:56:698 932 590 Report WARNING: Reporter failed to upload events with hr = 80072ee6. 2010-04-20 13:23:17:734 932 590 PT WARNING: PTError: 0x80072ee6 2010-04-20 13:23:17:734 932 590 PT WARNING: Initialization failed for Protocol Talker Context: 0x80072ee6 2010-04-20 13:23:17:734 932 590 Report WARNING: Reporter failed to upload events with hr = 80072ee6. Is this what you meant?

2010-04-20 13:39:54:389 932 1320 Misc WARNING: DownloadFileInternal failed for AGR-SRV-WSUS/selfupdate/wuident.cab: error 0x80072ee6 2010-04-20 12:47:35:059 932 590 Misc WARNING: DownloadFileInternal failed for AGR-SRV-WSUS/selfupdate/wuident.cab: error 0x80072ee6 Hi Gert_62 I notice that error recorder, looks like your server has been specified intranet Microsoft update service location, but it's seems a bad URL, try to configured it as “http(s)://AGR-SRV-WSUS/selfupdate/wuident.cab” and run "wuauclt /detectnow" again Please reference the article below: Configure Clients Using Group Policy http://technet.microsoft.com/en-us/library/dd939933(WS.10).aspx The “Specify intranet Microsoft Update service location” subsection Hope that's helpful

HiGert_62 have you resolve your problem I expect your replay Thanks

Hi liyin, I'm sorry but I haven't had the time to try it. It is set by a policy and I have to talk to a colleage to see what we can change about it. At least now I know that that is the reason for the errormessage. I wasn't aware of that before. I'm a bit hesitant to just change the policy becuase se had a lot of problems with SPN registration on various servers. So I have to see how those relate. And read a bit more about what the SPN stuff is all about. Because I'm not familiar with it yet. When I changed it and it works I will post a message. Thanks for your help. Gert

This took me a while. But in the meantime I changed this update location in Windows update to what you suggested and the problem is solved. Thanks a lot!

I just resived alart. you are welcome. Glad you resolve this issur!