Hi Arnoldp,
Welcome to the Forum.
If you restore to Factory Specs using the Recovery Partition this returns the computer to a state it was in when you first purchased the computer; hence the need to save personal files and programs you have added since purchase.
I'm not sure the reason your wife wants to do this, but if its simply because Windows 10 is not functioning too well at the moment, another option would be to do an in-place upgrade of Windows 10, which effectively installs the current version of Windows 10 on your computer over the top. This option will reinstall the universal apps that comes with Windows 10 such as Photos, Mail, Store, etcetera, and during the process you can choose to keep personal files and settings.
If that sounds acceptable to you and your wife let me know and I'll post some information on how to go about doing this.
Regards,
Regedit32