SQL SERVER – Installation Failure Database engine services failed.

Sometimes when we install SQL Server or Add any new SQL Server Instance on Windows Machine, we can see the database errors listed below.
To resolve these errors we are trying to repair existing installation or do something else.
If nothing happens then we are trying to install it completely from control panel, but it is not 100% sure that the fresh new installation will works. Some of the SQL Server links existing at system registry so we are not able to get it success.

Installation error list
Installation error
Installation error list
Installation error list

To resolve these registry things we can un-install all SQL server related things by theirs ID.

The ID we can get using “WMIC” command. So run this command on console:

WMIC PRODUCT Where "Caption like '%SQL%'" GET Caption, IdentifyingNumber
WMIC Result
WMIC Result

You will get a list of objects with their identifier.

Now un-install these all things one by one using below command:

msiexec /x {GUID}


msiexec /x {ABB6AC00-F1D8-4EBF-8128-830D090B76C0}


I think after that restart the machine and try fresh installation, will works.