Your question doesn't have a lot of detail to it, so this is a general answer.
I would suggest repairing the installation from the
Control Panel > Add/Remove Programs. Choose to repair rather than remove. If that doesn't work, check the article below.
This can be caused by the user not having proper permissions to complete the installation, a third party program restricting the use or complete installation, or the user not having enough permission to use the types of files associated with the program.
Here is a MS Support article related to this - You receive an error message when you install an Office program or open an Office program or document