Using Outlook 2007 (6.1.7601 Service Pack 1 Build 7601) and two days ago it "lost" the color coding on the calendar. I can reset them but they disappear again when I close Outlook. I updated Microsoft the day before this started, so I think it has something to do with the update, but have no idea how to tell or to fix it. Update on 8/4 was Update for Windows 7 for x64-based Systems (KB2952664).

Any suggestions?

Hi,

Is it a shared calendar or your own calendar?

Please try start Outlook with the /remigratecategories switch and then check if this issue continues. To do this, exit Outlook. Press Windows key + R to open the Run command, type outlook /remigratecategories and press Enter. The command starts Outlook and initiates the following commands on the default mailbox:

• Upgrades colored For Follow Up flags to Office Outlook 2007 color categories.

• Upgrades calendar labels to Office Outlook 2007 color categories.

• Adds all categories used on non-mail items into the Master Category List.

Hope this helps.

Regards,

Steve Fan
TechNet Community Support