Causes

• Some users fail to migrate from Exchange 2010 and get “Failed with 0x80004005” errors in the trace log file.

Fixes

Step 1: Install The Latest Service Packs

Install the latest service packs for your Microsoft Exchange server and Windows environment.

Step 2: Upgrade Version

If you’re still experiencing problems, you might need to upgrade to Exchange 2010 SP2 RU3.

Step 3: Consult Microsoft Support

For more information, consult Microsoft support article KB2674185 and the Exchange server wiki page.