Hi! I found the fix of the problem (another user had tried my fix and worked),
I did these steps:
- Run word as administrator (Shortcut > Compatibility > 'Run as Administrator)
- Start Word and then go to File > Options > Add-ins,
* Under manage tab ''Manage: COM Add-ins'' GO
* Deselect all add-ins and then type Ok.
- Restart Word
Now when I click on 'Browse' it pops us the window, just as normal.