I am logged on as administrator. Lotus Smart Suite 9 has been on my PC since the days of Windows XP through to Windows 10 and Lotus 123 has always run immediately on selecting 123w.exe. Recently I had a problem with charts in 123 so I re-installed just the 123 part of Smart Suite. Since then before running 123 I have to answer the message from User Account Control 'Do you want to allow this app from an unknown publisher to make changes to your device?'
The other Lotus programs run OK with that message.