# Sudden, Unexpected Expiration

Efofex products store their registration information in a simple text file on your computer. Unfortunately, school system administrators sometimes implement policies which result in the deletion of this file. When this occurs, the Efofex product will suddenly expire, even though it was successfully registered in the past.

In the vast majority of cases, all you need to do is to re-enter your registration information. You can do this immediately by pushing the Enter Code button at the bottom of this screen. Your registration information will be saved onto your computer into a new location that should prevent this problem from occurring again. You may need administrator privileges to perform this registration.

If the loss of registration information is repetitive, your tech support person should contact us at support@efofex.com for assistance in resolving the problem.