Re: MySQL Installer 8.0.28 installation fails

[Peter Brawley]

"MySQL80" is after the quoted argument, it's just the name of the service.

Without it, the startup command runs normally.

Now to stop that instance, open another cmdline window, run ...

mysqladmin -uUSR -pPWD shutdown

... where USR & PWD are your mysql username & password.

Then right click on mysql80 in services.msc and click Start, if it runs you're golden, if it doesn't check the mysql error log (<machinename>.err in your MySQL data directory).