Next is the nuclear option:
1 Uninstall Office XP from Control Panel-->Add or remove Programs
2 Click Start, right-click My Computer, select Explore.
3 Expand the C: drive; expand Program Files.
4 If there is a folder named Microsoft Office, delete it.
The next steps involve editing the registry. If you are not 100%
comfortable working with the registry: DON'T. Try reinstalling Office and
see if the problem is fixed. Otherwise:
5 Click Start, click Run and type in regedit.
6 On the registry window: click File, select Export... and save the current
settings in a file named something like regback030106.
7 Back in the registry window, expand these folders: HKEY_CURRENT_USER,
Software, Microsoft.
8 Right click the Office folder and select delete.
9 Click the box next to the HKEY_CURRENT_USER folder to collapse it.
10 Expand HKEY_LOCAL_MACHINE, Software, Microsoft, and delete the office
folder as you did previously.
11 Restart the PC
12 Reinstall Office
If you need to restore thr original registry:
1 Go back into the registry, click File, select Import .
2 Select you backup file and click the Open button.