Did the Reset offer to download the files from the cloud? If not then it reinstalls using the same corrupt onboard files. That's why the Clean Install is better because there's no way it would start up without major features unless the media was modified.
Have you worked your way through all of the fixes I gave for Store, Photos app and Windows 10 install itself? Make sure to not skip any steps - we often find out later the skipped step was the fix.
It is very important that he/she tells us if they use a Microsoft Account, as the administrator may have blocked these apps.
Also, the apps may be blocked because of your country (I am talking about Microsoft Store)