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How to fix installation errors 2502 or 2503?

The Windows errors 2502, 2503 happen during the installation of the software when the security permission settings of Windows are not in order.

A very detailed description why these error occur and how to fix them can be found in this blog
https://www.boxaid.com/blog/how-to-fix-2502-2503-errors/

There a two great videos available on YouTube how to fix these errors, too:

Windows 10/11:
https://www.youtube.com/watch?v=z1VLp_VbHuQ
Windows 11:
https://www.youtube.com/watch?v=MZC2hcrieS8

For the installation of Notation's software the security permission settings of Windows need to be clean.