Last Update: 10/22/2015
From Origin 9.1 Service Release 2, we added window limitation to Student Version. The number of accessible windows in an Origin project, including all kinds of windows - WorkBook, Matrix, Graph, Notes, Layout, etc., is limited to 30 in total. Windows beyond the first 30 will not be accessible, but will be saved with the project.
If you purchase a Student license, you may find that some windows in a big project are "locked". You can consider splitting the project into several small ones. That is, categorize windows into different folders, no more than 30 windows in each folder. And then right click on the folder and select Save as Project to save it as a separated project.
Keywords:Student version, fail to open, window limitation, locked window