Hi, We originally purchased Office Pro 2007. We upgraded to the 2013 version. When I updated our Windows 8 computer to Windows 8.1 and put myself in line for Windows 10 upgrade. Suddenly I can't open my Windows docs and Outlook express. I found the Office Pro 2007 version, and then I realized I had a newer version in here. Can I install the 2007 and then upgrade it to 2013 later in the week, so I can open my business email today? Or would you advise waiting.

Hi Cara Rose,

Based on your description, my understanding is that you upgraded you Windows System to Windows 10 and then you cannot open your Office file and Outlook anymore. You wanted to know can you install Office 2007 on Windows 10.

Is my understanding correct?

If yes, Office 2003, Office 2007, Office 2010, Office 2013 and the upcoming Office 2016 (currently in beta) are fully compatible with Windows 10.

You can refer to this article to get more information:
http://www.intowindows.com/microsoft-office-2007-office-2010-support-windows-10/

If you cannot open any Office programs after upgrading to Windows 10, I suggest you try to repair Office.

Hope it's helpful.

Regards,

Emi Zhang
TechNet Community Su