If you’re an admin user, it is your responsibility to ensure all devices are regulated and all users have signed into the correct devices. However, there may be instances where users have not signed into the correct devices or signed into locations that your organization does not authorize. Microsoft gives you the ability to sign out a Microsoft 365 user on all devices they are logged into. However, how can you sign out a user on all devices in Office 365? Have a read-through and see what you can do to sign out a user on all devices in Office 365.
You will need to access the admin section of Office 365 to proceed with the steps illustrated below. An admin area is where you can oversee user accounts and details if necessary. You will then be able to select a user and sign them out of all devices instantly upon request. You will need to be assigned the role of an admin user to proceed with the steps illustrated below; otherwise, the process will not work for you.
- Firstly, open Office 365.
- Click on the launcher, which is illustrated by nine dots.
- Now click on “Admin.”
- From there, click on “Users.”
- After that, you need to click on “Active users.”
- Now select a user from the list.
- From there, select “accounts.”
- Under the option for “sign out,” select “Sign out of all sessions.”
- Finally, close the panel.
Once the steps above have been completed, you will have successfully signed out a user from all devices on Microsoft 365. You can sign out and change account details for users within your network as you have admin permission. You can proceed with the steps illustrated above to make sure a user is signed out of all devices. However, this process is irreversible, so you need to select the right user. If you have selected the incorrect users and signed them out, you may cause those users inconvenience when they are working on tasks.
An in-depth guide on How to instantly sign out a Microsoft 365 user on all devices
If you struggle to follow the process shown above, you can use an in-depth guide to help. The guide illustrated below includes screenshots that will allow you to complete the process without issues. The screenshots give you a better understanding of the UI and provide a suitable navigation tool to proceed with the steps shown. You can use some in-depth analysis if you do not understand the steps correctly. Have a read-through to see if you can better understand how to sign out a user instantly on all devices in Office 365.
- Firstly, open Office 365.

You will need to sign in to Office 365 using your normal account details to start the process. If you are an admin user, account details will be the same only your permissions will be different from normal users.
- Click on the launcher, which is illustrated by nine dots.

Once you have signed in to your account, you need to click on the launcher, which is illustrated by nine dots in the left corner of the display. Once you have clicked on the launcher, you will then be able to access the applications which make up the Office 365 network.
- Now click on “Admin.”

- From there, click on “Users.”

- After that, you need to click on “Active users.”

- Now select a user from the list.

- From there, select “accounts.”

- Under the option for “sign out,” select “Sign out of all sessions.”

- Finally, close the panel.

When you have completed the steps shown above, you will have signed out a user from all devices on Office 365. If you have been delegated the permissions of an admin user, you can then follow the steps shown above to sign out a user from Office 365 on all devices. However, you must remember that this process cannot be reversed when you sign out a user on all devices. You will need to make sure the correct user is selected initially; otherwise, you run the risk of causing inconvenience. If the incorrect user is signed out, you may cause them issues with tasks they are currently completing.
Why may you want to instantly sign out as a Microsoft 365 user on all devices?
If you have signed out a user from Office 365 on all devices, you may be in a situation where the user has signed into the incorrect devices. Incorrect devices may include devices not authorized by the company or a device that has been notorious for breaching company information. You can use the steps shown above to sign out a user from all those devices; however, the user will need to sign in to the correct devices again.
Certain companies and organizations may want to restrict user sign-ins on devices not regulated by the company or organization. Some companies have set policies restricting users from signing into company-based software on personal or non-regulated devices. As an admin user, if you find that a member of your company has signed into an external device, you can use the process above to sign them out.
Another reason why you may want to sign out an Office 365 user from all devices is that one of the computers they are using has been hacked. It may be difficult and time-consuming to try and locate the device that has been hacked. However, with the process shown above, you can easily sign out a user on all devices to ensure that their account details are not breached. This process is especially effective for users who sign into multiple devices. If you have users who use multiple devices regularly, they can now sign in to the correct devices.
Conclusion
Thank you for taking the time to read our content on instantly signing out an Office 365 user from all devices. You can sign out a user from all devices using the steps shown above as an admin user. If a user is signed into an incorrect device or one of the devices they are using has been hacked, the process shown above will help. We have also illustrated some points where signing out an Office 365 user from all their devices is helpful. However, if you do not understand any of the points shown above, you can simply drop a comment below, and we will address those issues as soon as possible.