Windows 10 – Users Already Logged in at Boot

Most operating systems support some form of disk quotas and all current systems (in common use) support permissions.

To use quotas, you can set them per-user on the disk or partition. In Windows, the settings can be accessed by right-clicking a disk in My Computer. This is not the best way, however.

Using permissions to restrict the user will likely be more useful. Provide a limited user account and remove read permissions for that user on any directories or files they need not access. They will need some permissions to the system directories, at least to read files, and should likely have full permissions for their partition. They should certainly have no permissions, (read, write, or execute) for your partition and home directory.

Thanks to Moab's comment and link I found the information here: http://www.addictivetips.com/windows-tips/switch-from-a-microsoft-account-to-a-local-account-in-windows-10/

So, here are the steps (sans pictures) to do this:

1. Go to "Your email and accounts"
   • Either "Windows menu button -> Settings -> Accounts -> Your email and accounts"
   • or "Windows menu button -> {your username} -> Change account settings"
2. Select "Sign in with a local account instead"
3. Enter your current password and click "Next"
4. Change the username (mandatory, unfortunately)
5. Enter your new password and confirm it
6. Enter a password hint (also mandatory, unfortunately. However, it does accept a single space: as your hint)
7. Click "Next"
8. Click "Sign out and finish"

Once back at the login screen select your new username and type in your new password. Your files will be where you left them but now the path won't match your username as it did before as it will still include your old username.

You may find that some settings are different such as being prompted again: "Do you want to make {non-Edge browser} your default?"

Bonus information: To log out of your account manually, click the Windows menu button -> {your username} -> Sign out.

Bonus bonus information: To change your local username back to your original one:

1. Open "User Accounts" in Control Panel (I typed "account" into the Settings window's search or you can use one of the methods from the following link)

   http://www.isunshare.com/windows-10/7-ways-to-open-control-panel-in-windows-10.html

2. Click "Change your account name"
3. Type your new account name and click "Change name"
4. Log out (see Bonus information above) and your new old name will be applied!

Windows doesn't care that you've used that name previously.