Summary
When user attempts into Windows on a computer that has not been used in more than six months, they are unable to do so and the following message comes up on the screen:
"Something went wrong. Your organization has deleted this device."
Body
When user attempts to log into Windows, or tries to access a UWindsor online resource on a computer that has not been used in a long time, they are unable to do so and the following message comes up on the screen: "Something went wrong. Your organization has deleted this device" with error code 700003:

Most likely, this device has been deemed as a "stale device" and as such it has been removed from the device administration platform - hence any user of this device will no longer be able to sign into it using their Microsoft Work Account (aka UWin Account). A "stale device" is one that had no activity in the last 6 months (180 days). Microsoft's best practice is to perform periodic cleanups of stale devices. According to Microsoft, "Stale devices in Azure AD can interfere with the general life cycle policies for devices in your organization."
If this device needs to be used again and it is a corporate device owned by the University, it has to be re-joined to Azure AD by IT Services Service Desk staff or a departmental technician. A ticket should be submitted for this work (select "Join Windows PC to Azure AD" in the Request Type field on the ticket form).
If the device is a personal computer (BYOD), then it has to have it's UWindsor email account disconnected from Access work or school (if using Windows) or it must be Removed from the Company Portal application (for both Windows and MacOS). Afterwards, it must be registered one more time before it can access UWindsor online resources.