Use Repairing tool in setup of Microsoft Office 2010, if you have accidently delete shortcuts, disabled toolbars, changed default setting or even mess-up with registries of Microsoft Office. Repairing will restore default status as 1st installation of program. It is Similar to reinstalling, but in repairing mode you don't need to uninstall, you can restore default status without uninstallation and reinstallation.
How to Repair Microsoft Office Professional Plus 2010:
1- Click Start
2- Click Setting
3- Double Click "Control Panel"
4- Double Click "Add Remove Programs"
5- Click Microsoft Office Professional Plus 2010
6- Click Change button next right to Microsoft Office
7- Click Repair (combo option)
8- Click Continue
9- Click Close button (Read Configuration message)
10- Click Yes button (it will Restart)
("In order to complete setup, a system reboot is necessary.Would you like to reboot now?")
Remember:
1- Repairing mode will repair default installation of chosen subset of program, if you need to add or
remove feature of MS Office 2010, you should use add-remove features.