If you do not want any of the accounts on your computer to be available, you can disable it. This does not mean that it will be removed. You can always turn it back on. You can disable any account, including the special “Guest” account, which is always present by default in operating systems of the Windows family.
Instructions
Step 1
The most convenient way to manage accounts is from the Microsoft Management Console (MMC). Open it. To do this, click "Start" -> Run -> mmc. Or "Start" and in the search field type mmc, then press the Enter key. If the system asks for confirmation to allow the program to make changes on the computer, click OK. If you need to enter an administrator password, do that as well. The MMC console will open.
Step 2
On the left in the menu, you will see a list with the item "Local users and groups". If local users and groups did not appear there, then, probably, no one has previously edited user accounts from this computer through the console, so you need to add the snap-in. To do this, select the "File" menu, then select the "Add or remove snap-in" item.
Step 3
Now in the list that opens, find the item "Local users and groups", select it, click "Add". You will see how it appears in the list. Click the Finish button, then click OK to return to the console and start editing accounts.
Step 4
Click on the "Local Users and Groups" group in the menu. Several folders will appear in the list of the adjacent panel, including the "Users" directory. After double-clicking on it, a list of users will open, there select the name of the account that you want to disable.
Step 5
Call the account menu with the right button, select "Properties". There you will see the General tab. Check the box next to the "Disable account" setting, now click "OK".
Step 6
When you want to enable a user account so that it becomes available again, do the same, only instead of checking the box next to the setting for disabling the account, uncheck it. This user will now be able to log in again.