You need to get a modern version of Windows

You need to get a modern version of Windows

Hello,

I suggest that you have a look at the minimum system requirements mentioned on the Microsoft product page for Office 2013 and see whether there is any mismatch between those requirements and your system's capability, in order to be able to properly install and use Office 2013.

Please take a note of whether the version of OS you are using is 32-bir or 64-bit and whether the installer you used was for 32-bit Office or 64-bit Office. It matters because, for example, as mentioned on the Microsoft website, if you are aiming at installing 64-bit Office on a 32-bit Windows 7 PC, that won't work.

Also, please take a note that currently there is no support for side-by-side installation of 32-bit and 64-bit Office variants. For example, your PC cannot host both 32-bit Office 2010 and 64-bit Office 2013 at the same time. Therefore, if you already have a working version of Office on your PC, check whether it is 32-bit or 64-bit. Then please ensure you are not trying to install Office on your PC, incompatible "bit wise" with your current Office.

For more details, please visit this official page.
https://technet.microsoft.com/en-us/library/ee624351.aspx

Hope it helps.

Best Regards,
Parisi