What’s a guest account on a Windows PC? A guest account is nothing but an account for users who don’t have a permanent or specified account on the PC. The guest account comes in handy when you want to let someone else use your PC for a short period without creating a new user account.
The user on guest account can’t access files on other accounts. Additionally, guest account user can’t make any changes to system settings, create new user account, or create a password for the account.
In previous version of Windows, turning on or enabling the built-in guest account was fairly simple. We could navigate to user accounts section of Control Panel to turn on the guest account.
Enable Guest account via Group Policy
Note that Group Policy is not part of Home edition of Windows 10. So, this method doesn’t work on Windows 10 Home edition.
Step 1: Open Group Policy Editor, by typing Edit Group Policy in the Start or taskbar search box and then pressing Enter key.
enable guest account in Windows 10 step6
Click Yes if and when you see the UAC prompt.

Step 2: In the Group Policy Editor, navigate to the following policy:
Computer Configuration > Windows Settings > Security Settings > Local Policies > Security Options.
Step 3: On the right-side, look for the policy labelled Accounts: Guest account status and double-click on the same to open its properties.
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Step 4: Select Enabled option and then click Apply button to turn on the Guest account in Windows 10.
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Have you enabled guest account on your Windows 10 PC?