SSMS install error 0x80070652 says setup is blocked due to another install currently running. Here is what fixed it for me.
Running Several SQL Server Instances on One Machine
Budget several SQL Server instances on one Windows host, inventory services, assign memory and ports, and monitor shared resource pressure.
SQL SERVER – Installation Failure – Specified Instance Via Transform is Already Installed. MSINEWINSTANCE Requires a New Instance that is not Installed
A client’s second clustered SQL Server instance failed to install: Specified instance via transform is already installed. Here is what I found and the fix.







