Quote Originally Posted by Aloone_Jonez
Really for security reasons (read to help protect you from viruses) all users should use limited accounts (this is even more important if they have Internet access) ... the only disadvantage is it breaks some old software - the choice is yours security vs backwards compatibility.
Thanks for your suggestion Aloone_Jonez. I've always been of the same opinion, and originally did have just one Administrator user.

However, because some things did not work, I restored each user back to Administrator type.

Following your comments, I'll have another try at having a single Administrator user with all 'normal' users restricted to Limited type.