Today I was trying to install SSMS SQL Server Management Studio 18.9.1 & the installation was stopped with a message “Microsoft ODBC Driver 17: A previous installation required a reboot of the machine for changes to take effect”
Abiding, I went ahead to reboot & instead pressed the shutdown button. After restarting the PC, tried to install SSMS once again and the installer gave up mentioning the same message.
All I needed was “reboot” the machine. Microsoft is sometimes, grr.