How to Rectify my map?

[VASILIKILAGARI]

I am new to ArcGIS and now following a manual in order to learn the basic. After I georeferenced a map I selected Update Georeferencing. However, I need to Rectify it but now the software does not give me that option anymore (it is greyed). Does anyone know how I can undo the updating and choose Rectify???

[LanceCole]

Vasiliki,

With the georeferenced image loaded make sure the correct image is selected in the dropdown in then go to the View Link Table button on your Georeferencing toolbar.  This will display the links you previously created and should enable the Update Georeferencing and Rectify options once the Link window is open.  You can add and delete the previous georeferenced link points from here including all of them.