I am running Windows 7 Pro, 64-bit. 8GB RAM. I am able to successfully install all other windows updates except IE9. I keep getting a code error 80042009. I tried following the troubleshooter in the message that pops up. Here is what I have tried up to this point. 1. Download the IE9 Full installer, same error fails about the 50% mark. 2. Verify no other updates pending. All other updates successful, even service pack 1 for Windows 7..After SP1, IE9 still fails to install 3. Performed full system scan, no maleware or virus. 4. Uninstalled both Symantec Endpoint and Spybot, IE9 Install still fails. 5. Verified that Windows Firewall is enabled., IE9 install still fails. Any suggestions? Thanks.

Hi Phill, Have you tried to install IE 9 from a different user account?

Actually I have not as there is just the one account, besides the administrator account. I have tried "run as" but having the same results. I will log in tonight and try that..if necessary I will create a second account if the admin account will not work. In addition someone mentioned possibly disabling all addons to IE...

Hi, Please install IE9 in clean boot and reset the current IE. I would like to share following KB to troubleshoot the issue. If IE9 fails again, please upload C:\Windows\IE9_main.log to SkyDrive or paste here for further research. http://support.microsoft.com/kb/2409098/en-us Best Regards, Niki Please remember to click "Mark as Answer" on the post that helps you, and to click "Unmark as Answer" if a marked post does not actually answer your question. This can be beneficial to other community members reading the thread.

Performed a clean boot. Tried a install after clean boot. Still same failure. I went ahead and disabled Symantec Endpoint..same failure. Here is the IE9_main.log. The only update waiting in Windows update is IE9..all other updates have successfully installed. 00:00.000: ==================================================================== 00:00.047: Started: 2011/09/08 (Y/M/D) 18:06:13.654 (local) 00:00.047: Time Format in this log: MM:ss.mmm (minutes:seconds.milliseconds) 00:00.047: Command line: "C:\Users\User\Desktop\IE9-Windows7-x64-enu.exe" 00:00.047: INFO: Setup installer for Internet Explorer: 9.0.8112.16421 00:00.047: INFO: Previous version of Internet Explorer: 8.0.7601.17638 00:00.047: INFO: Checking if iexplore.exe's current version is between 9.0.6001.0... 00:00.047: INFO: ...and 9.1.0.0... 00:00.047: INFO: Maximum version on which to run IEAK branding is: 9.1.0.0... 00:00.047: INFO: iexplore.exe version check success. Install can proceed. 00:00.047: INFO: Trying to extract ID: 7006 (0) as "IE9-neutral.Extracted.cab" 00:00.297: INFO: Trying to extract ID: 5006 (0) as "IE9-support.cab" 00:00.609: INFO: Operating System: Windows Workstation: 6.1.7601 (Service Pack 1) 00:00.656: INFO: Windows 7 operating system detected. 00:00.656: INFO: Service pack major: 1 00:00.656: INFO: Service pack minor: 0 00:00.656: INFO: Service pack name: Service Pack 1 00:00.718: INFO: PauseOrResumeAUThread: Successfully paused Automatic Updates. 00:02.044: INFO: The neutral pack was successfully downloaded from the internet. Installation will continue using the downloaded package. 00:02.091: INFO: No reboot policy and supplemental files successfully downloaded and extracted for use. 00:02.138: INFO: No reboot logic message NrApiStart(0), lParam=0x00607890 returned 0x00000000. 00:02.715: INFO: No reboot logic message NrApiScan(1), lParam=0x00000001 returned 0x00000000. 00:02.715: INFO: No reboot logic message NrApiStartInstall(4), lParam=0x00000001 returned 0x00000014. 00:02.715: INFO: Installing with the downloaded package. C:\Windows\TEMP\IE9AC83.tmp\IE9-neutral.Downloaded.msu 00:02.808: INFO: Launched package installation: C:\Windows\system32\dism.exe /online /add-package /packagepath:C:\Windows\TEMP\IE9AC83.tmp\IE9-neutral.Downloaded\Windows6.1-KB982861-x64.cab /quiet /norestart 00:25.975: INFO: Process exit code 0x80092004 (-2146885628) [Cannot find object or property. ] 00:25.990: ERROR: Neutral MSU installation failed (exit code = 0x80092004 (2148081668)). 00:25.990: INFO: No reboot logic message NrApiInstallDone(7), lParam=0x80092004 returned 0x00000000. 00:25.990: INFO: No reboot logic message NrApiStartFinish(11), lParam=0x00000000 returned 0x00000000. 00:26.021: INFO: No reboot logic message NrApiFinish(12), lParam=0x00000000 returned 0x00000016. 00:26.037: INFO: PauseOrResumeAUThread: Successfully resumed Automatic Updates. 00:28.221: INFO: Setup exit code 0x80092004 (-2146885628) [Cannot find object or property. ] 00:28.361: INFO: Scheduling upload to IE SQM server: http://sqm.microsoft.com/sqm/ie/sqmserver.dll 00:28.361: INFO: SQM Upload returned 403 00:28.361: INFO: Cleaning up temporary files in: C:\Windows\TEMP\IE9AC83.tmp 00:28.455: INFO: Unable to remove directory C:\Windows\TEMP\IE9AC83.tmp, marking for deletion on reboot. 00:28.455: INFO: Released Internet Explorer Installer Mutex Any suggestions?

Hi, I suggest booting in Safe Mode and renaming the following entries from C:\Windows\servicing\Packages Microsoft-Windows-InternetExplorer-Optional-Package~31bf3856ad364e35~amd64~en-US~9.4.8112.16421.cat Microsoft-Windows-InternetExplorer-Optional-Package~31bf3856ad364e35~amd64~en-US~9.4.8112.16421.mum Microsoft-Windows-InternetExplorer-Package-TopLevel~31bf3856ad364e35~amd64~~9.4.8112.16421.cat Microsoft-Windows-InternetExplorer-Package-TopLevel~31bf3856ad364e35~amd64~~9.4.8112.16421.mum Microsoft-Windows-InternetExplorer-VistaPlus-Update~31bf3856ad364e35~amd64~~9.4.8112.16421.cat Microsoft-Windows-InternetExplorer-VistaPlus-Update~31bf3856ad364e35~amd64~~9.4.8112.16421.mum If any error message is received, please let me know. Best Regards, Niki Please remember to click "Mark as Answer" on the post that helps you, and to click "Unmark as Answer" if a marked post does not actually answer your question. This can be beneficial to other community members reading the thread.

Thanks Niki, I tried that myself but it didn't work. I have been trying to install IE9 (and 7 SP1) for over a year now. I think it's due to the fact that I upgraded from Vista rather than clean installing. I have tried everything I can think of and everything I can find, and it absolutely refuses to work.

I'm baffled. I gave up on this. I've tried everything and nothing worked. I just started using Firefox. I've applied multiple updates since then and IE would always faile. However, over this weekend IE9 installed successfully on its own as part of the automatic updates. I have no clue as to why it would now update and install just fine.. I was having this issue for 6 months. Now it installed just fine..