I have an elderly friend who is a daily user of the internet. Currently he uses a Windows 10 laptop.
However he has memory problems and his eyesight is imperfect. He finds the experience with Windows very frustrating at times.
His problems I would try to summarise as follows:
- unwanted and unexpected changes in the user interface
- complicated login procedure with PIN, passwords etc
- unresponsive computer due to updates being processed
- text being too small including that of error messages
- too many unwanted features
- on booting up the computer appears ready but is not
He finds it very confusing when unexpected things happen. He needs things too be simple, straight forward and the interface to stay the same from year to year.