I'm trying to help a friend who has just bought a new Win11 (home) PC. All works OK, until we get to MS Access. He has a copy of Office2013 Pro (yes, its old and unsupported but works OK on other systems) and it installs fine. We open up a database, and the first time, it opens up as expected. The second time of opening, however, it shows the box shown below, and when you click accept, it shuts Access down. The only way back is to reinstall Office. It looks like an issue with the user permissions, but access/office seems to be happy to accept the licence key when first installed. Can anyone suggest a way round this?