Thanks for replay. Of course I could not wait for 14.1. I don't know for sure but I think it had do with the reinstall of documents and other things the installer offers at the end (it went wrong two times). So I discovered, first on my NUC8i3 that if I just do un update and skip the "clean install" everything worked for me too. I did the same on the NUC8i5 and no problems. Probably a clean install will work if I skip the step to automatically reinstall my documents and other settings. I may try that an other day, but for now all OK!