Patch 11.1.0.7.0 on windows 2003 x64 R2 Error

My DB Oracle 11g working fine ,but after apply patch 11.1.0.7.0 , I can not open database

 SQL> startup mount;
ORACLE instance started.

Total System Global Area 1.6435E+10 bytes
Fixed Size                  2135896 bytes
Variable Size            5838473384 bytes
Database Buffers         1.0536E+10 bytes
Redo Buffers               58368000 bytes
Database mounted.
SQL> alter database open;
alter database open
*
ERROR at line 1:
ORA-01092: ORACLE instance terminated. Disconnection forced
Process ID: 4620
Session ID: 170 Serial number: 5

What wrong in patch ?

Thanks.