Thank you for your answers. It is version 10.6.1. I work at the Geological Survey of the Faroe Islands that has the advanced license. However there seems to be a problem with the licens-key or some installation on my computer. I have checked that I have the right Authorization key for the advanced version. I do. But the program still says that I have the standard version of ArcMap, where many of the tools are locked. Unfortunately. I am working my way through an ArcMap course that uses "Erase" and "Identity" from the System-Toolbox. Hopefully I find out what the issue is with the wrong license key. Thank you again for suggesting solutions 🙂
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