Upgrade Outlook Connector

Upgrade in Progress

Your mailbox is currently being optimized as part of upgrading to Outlook 2010. This one

time process may take over 15 minutes and performance may be affected while the 

optimization is in progress.

 

Upgrade Outlook connector

You must upgrade to the latest version of Outlook Hotmail Connector to continue using this e-mail account.

 

解决办法，删除 Office 2010，再重新安装。或者更快的办法，重新安装，点击修复安装。

Uninstall Outlook 
Repair Office (Add/remove program - Office 2010 - Repair)
Restart computer and Outlook works fine