Webzest from http://social.technet.microsoft.com/Forums/en/office2010/thread/c197a825-2c94-4073-a2c3-bd4fdea20bcb
Suggest the following solution:
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Easy approach is to simply rename the following Registry keys:
From:
HKEY_CURRENT_USER\Software\Microsoft\Office
HKEY_LOCAL_MACHINE\Software\Microsoft\Office
To:
HKEY_CURRENT_USER\Software\Microsoft\xOffice
HKEY_LOCAL_MACHINE\Software\Microsoft\xOffice
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I found this could solve the error message I had. However, there is some reason I cannot just give up the whole registry folder and create a new one. Therefore, I dug deeper and finally found out the exact registry causing the problem.
My computer\hkey_local_machine\software\microsoft\office\11.0\delivery
Rename "..\office\11.0\delivery" to "..\office\11.0\xdelivery" so the windows do not know "delivery" is existed.
After you changed it, you will be able to continue the installation of MS office 2010
(PS: I just shared my experiense via the internet. As I am not a expert of MS office, I would not be able to provide any further support for MS office.)