An error occurs when trying to share a file by OneDrive in an office application (Word, Excel, PowerPoint, etc.) on the Zengaku Computer System.

Please sign out from the currently signed-in account in the running Office application (Word, Excel, PowerPoint, etc.) and sign in again. You can do this by selecting your name on display in the upper right of the window (by Switching account).
* This must be done every time when the Zengaku Computer System is turned on. Even if you have signed in or signed out before, you need to do it every time you start the system.

Please refer to the following page about OneDrive for Business by EES benefits of our university.
OneDrive for Business

Is it possible to change the device to be used?

Yes. It is possible to confirm/change the device to be used on the management screen of your own Office 365 portal site. For devices you no longer use, if you perform “deactivation” and uninstall the program, it will be excluded from the device number count.

What should I do to use Office on Android device?

You can use the product by downloading each Office product from the Google Play and signing in with the account signed up with the EES benefit. Please refer to I cannot sign up for sign up.
In addition, you can sign in and use up to 5 smartphones and 5 tablets as EES benefits.

I signed in with an email address ending with @, but I can not use Office. What should I do?

Information signed in with other previous accounts such as account may be saved in the browser cache and cookies. Because of this, even if you intended to be signed in at, you may be signed in at
Please delete your browser cache and cookies, or check if you can use self-signup with other browsers such as “Microsoft Edge”, “Google Chrome”, “Firefox”, or use different devices.