Error message Windows 7 Ultimate 64 Bit


The OS of my computer is Windows 7 Ultimate 64 bits brazilian language.

My computer has only my user account, and I am the Administrator.

I just download the PDFCreator_0_9_9_setup.exe, but when I try to install it, an error message appears: Windows cannot access the specified device, path, or file. You may not have the appropriate permissions to access the item.

If I try to install using RUN AS ADMINISTRATOR, the same error message appears.

I deleted the first setup.exe file, and downloaded a new one, but the error message appears again.

Do you have a solution for my problem?

Thanks for your help!