It is a personal computer, not part of a network. I'll work on the installation log if I can figure it out. I know enough about computers to get into trouble.
The message has not changed with or without unblocking the program, "The System Administrator has set policies to prevent this installation." The only option is OK.
When I run the installation I get the screen to accept the term of the program and then a window with a progress bar that does not progress and then the above message. I do not get the opportunity to install it to a different folder even if I want to.
As recommended I disabled my antivirus but that didn't help.
Again thanks to all who are helping.