错误日志中包含：
2011-10-28 16:15:01 Slp: Error: Action "ConfigEvent_SQL_Engine_Core_Inst_sql_engine_core_inst_Cpu32_Repair_Finalize_finalize" failed during execution.
2011-10-28 16:15:01 Slp: Action "SqlEngineConfigAction_repair_finalize_Cpu32" will return false due to the following conditions:
2011-10-28 16:15:01 Slp: Condition "Feature dependency condition for action: SqlEngineConfigAction_repair_finalize_Cpu32 The condition tests feature: SQL_Engine_Core_Inst_sql_engine_core_inst_Cpu32. There are 10 dependant features. The feature is tested for results: ValidateResult, Result, CleanupResult." did not pass as it returned false and true was expected.
2011-10-28 16:15:01 Slp: Condition is false because the required feature SQL_Engine_Core_Inst_sql_engine_core_inst_Cpu32 failed in result ValidateResult
查了很多资料最后在google中找到了几个的网页（赞下google）
http://social.msdn.microsoft.com/Forums/hr/sqlexpress/thread/73e5121f-200e-4d29-97e0-151d019ee75c
最后解决办法，把SQL的帐户放在administrator组里OK了。