The Windows 7 part, check. I presume you mean Office 2007, and if you do that version has been out of support for a very long time now. You need to upgrade your Office installation independent of anything else. There are all sorts of potential compatibility issues that come from Office 2007 and earlier that are not present in the later versions.
You did not give the NVDA version number, which is essential. NVDA+N,H,A will get you the "About NVDA" dialog which gives the Version number.
Brian - Windows 10 Pro, 64-Bit, Version 1903, Build 18362
The color of truth is grey.
~ André Gide