# Stopped Working

On launching Admin Tools, should you ever see the message 'Keyfax Inter•View has stopped working', e.g.

<figure><img src="https://2882349412-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F-MARm6St_qFGM52R3pBa%2Fuploads%2FhutVCEUyiVufRIS5EeBD%2Fimage.png?alt=media&#x26;token=cafd3b11-b255-4b67-b61f-f38c7dc2ee71" alt=""><figcaption></figcaption></figure>

It's possible that the `Preferences.dat` file has become corrupt in which case, delete the file at `%appdata%\Keyfax Administration{X.X.X}\Preferences.dat`. Where `X.X.X` represents the version of Keyfax Administrator Tools you have installed.