Outlook reminders not working after upgrading from Office 2003 to 2007
I just recently upgraded to Outlook 2007 (in 2011, I know). The calendar reminders weren't working even though I made sure default reminders were turned on. I missed a meeting or two. :( What worked for me was to close Outlook, then open a Command Prompt (Start > Run > cmd). Then go to the directory containing outlook.exe to clean the reminders database. Type the following (in bold ) from the command prompt: C:\Documents and Settings\User> cd "\program files\microsoft office\office12" C:\Program Files\Microsoft Office\Office12> outlook /cleanreminders Start Outlook and your reminders should pop up. If not, follow this link to an in-depth article for more troubleshooting: Outlook Reminders Problem