New laptop came with McAfee AV… I removed it and loaded the latest Avast instead. Now, my Outlook 2007 will no longer start. The program gets to the point where it accesses Avast for a quick check, then pukes… Gives me a message… “Cannot start Microsoft Office Outlook. Cannot open the Outlook window”
Seems like there is a conflict between Avast and Outlook… but, what to do to fix it???
Sometimes, McAfee won’t be completely removed if, before, you do not uninstall Avast, including the use of its “Uninstall Application” if necessary (www.avast.com/eng/faq-install-uninstall-avast.html).
I’ll look at the referenced links this evening… (I’m at work now)… But, when I “uninstalled” McAfee, I did it through the uninstall function (Control Panel, Add or Remove Programs) in Windows. And, thought that it would get everything… maybe it didn’t.
Once complete, I rebooted the machine. Then, loaded Avast…
Anyway, maybe your linked info will resolve the problem. I hope so… I really like Avast (except for the new “voice”… I kinda liked the old one.)
I cleared McAfee using their uninstaller, as you had instructed. I did that a couple of times, actually… Still no joy, Outlook wouldn’t load… So, I unloaded Avast… still no joy.
Finally, I went to Outlook and reset the navpane. That worked!!! Yippee!
So, I reinstalled Avast… and, now everything is working!! I am happy, happy!!
Most likely neither McAfee nor avast! caused the issue with Outlook failing to start properly. I’ve experienced that same message (using both 2003 and 2007) a few times over the years and have also seen it on friends’ PCs.
The “/resetnavpane” switch always does the trick so keep that in mind.