How to change account on windows 10?

Question

Windows

Before the windows update, it was possible to log in under several accounts. After the update, I logged in under a different account and all the files that were available before that are now not visible to me. How to add the ability to log in from other accounts or make all files visible to all users?

Answer 1

In the title of the question, one thing is solved simply - you add a new account in the standard way.
The text of the question is different - you change the access rights to folders, subfolders and files located in other people's accounts, in no less standard way - rights and permissions.
Or without changing, you just go to them as a user of the Administrators group.