You can disable users in Microsoft Admin by following these steps:
- Log in to the Microsoft 365 admin center: Go to https://admin.microsoft.com and sign in using your administrator credentials.
- Navigate to the Users section: Click on the Users option in the left-hand menu.
- Select the user you want to disable: Locate the user you need to disable from the list of users.
- Disable the user: Click on the user's name to open their profile. Then, click on the Manage button. In the user's profile, click on Account and toggle the Active switch to Off. This will disable the user's account.
Note: Disabling a user's account prevents them from accessing Microsoft 365 services, including email, files, and applications.