Each person in your home should have their own user account, and each time they use a PC, they should sign in to that account. Signing off or switching users takes a couple of clicks, literally: from the Start screen, click your picture and then click Sign Out or select a different account. That inconvenience is outweighed by many benefits:
Personalization. Each user account can use its own colors, Start screen arrangement, web bookmarks, and more.
Privacy. Each user’s files, apps, browsing history, and bookmarks can be kept separate.
Security. The first account you create is an administrator account and is allowed ...