Last Update: 3/31/2021
The Student Version has a limit of 30 accessible windows per Origin project. This applies to windows of any type - workbook, matrixbook, graph, layout, notes etc. Windows beyond the first 30 will not be accessible, but will be saved with the project.
Because of this 30 window limit, you may find that some windows in a big project are "locked". Consider splitting the project into several smaller projects. The easiest way to do that is to use Project Explorer to divide windows into folders of no more than 30 windows. Then, right-click on the folder and select Save as Project to save it as a separate project.
Note that the Learning Edition - a product that is free to eligible users - has a 12 window limit.
Keywords:Student version, Learning Edition, fail to open, window limitation, locked window, undergraduate, graduate