I would like to refresh windows 10 to clear out everything but the OS. I have several items of software including Office 2013 which is a volume licence that I want to retain. I am not sure that if I try to reinstall it will not upset MS licensing. If I extract the MS Key will I be able to reinstall. I realise that I can ring up MS and get them to reissue a licence but last time I did that they insisted that I had used the licence which of course I had it was the same PC. I don't really want to go through this again if I can somehow just blow it all a way and then reinstall the apps.
Thoughts Please