Errors in installation of Office 2010

Hello Everyone,
I am using Windows 7 64 bit and I recently want to install Office 2010 student. There are some error messages appearing whenever I am trying to install Office 2010. The first error comes as “Error 1935 during installation of assembly component (63E949F6-03BC-5C40-A01F-C8B3B9A1E18E). HRESULT: 0x800736FD.” While the second error that does appear “You do not have permission to execute the program / update, contact your system administrator.” Please note that I am using the only single profile in my computer and I am the only administrator. Can somebody help me fix these errors in installation? I would greatly appreciate your response.
Thank you in Advance
