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Hi @Yan, Jayden,
Please refer to this blog: https://www.sqlservercentral.com/blogs/uninstalling-sql-server-from-the-command-line-to-remove-unwanted-background-instances
Navigate to the location of the SQL Server setup media. Run the following command to start the uninstallation process:
setup.exe /q /action=uninstall /instancename=<instance name> /features=<comma separated feature list>
You can get a list of features by running the following command:
setup.exe /action=uninstall /help
It means to see its supported features, you could see that there is /action which could be uninstall, and /QUIET (Setup will not display any user interface.) and /QUIETSIMPLE (Setup will display progress only without any user).
Hope this would give you some help.
Best regards,
Seeya
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