Receiving an error message while installing Microsoft office

Hello friends,
This is my first question in this site. I am in a big problem and need help. Recently I installed Windows XP Service Pack 2. I am actually using two Operating Systems in one computer.
I use this computer for official purposes. The problem is today I tried to install Microsoft Office in my computer but I failed to run setup. I am receiving an error message. The error code is shown below:
Error 1327. Invalid Drive: C:
I pressed OK button, then program closed automatically. So what can I do now? I have to work in MS Word. Is this a virus or Operating System problem?
Reply me
