用户的Outlook启动后就定住了，整个窗口界面被冻结起来无法进行任何操作，于是尝试修复identity未果，提示无法修复，这样的话唯有新建一个identity。按住option键，然后点outlook，直到弹出建identity的窗口后松手，点加号，给个名字新建一个，然后点下方齿轮那个图标将这个新建的identity设为默认，重新启动outlook，恢复正常，但是这样保存在原来identity的本地邮件数据就不见了。可通过如下方式找回：
1. Upgrade to Service Pack 2 (SP2) 14.2.1 or later See this article for details.
2. Create a new blank SP2 Identity.
3. Quit Outlook.
(Some users have found that deleting the database file in the new Identity helped).
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4. COPY these Data Records folders from the old Identity to the new blank Identity replacing the new folders. Do NOT replace the root Data Records folder. Only the sub-folders listed here.
* Contacts
* Events
* Folders (one user reported replace Categories (not folders) worked better)
* Mail Accounts
* Message Attachments
* Message Sources
* Messages
* Note
* Signatures
* Signature Attachments
5. Select to rebuild the Identity in Database Utility.
6. Open Outlook and your data should be back.
参考链接：http://www.officeformachelp.com/2012/05/how-to-recover-your-data-when-rebuilding-restoring-and-upgrading-fails/
作者：51cto博客 simmy