Consistency validation for SQL server registry keys


  1. Stop all SQL Server Services
  2. Remove all SQL Server Services
  3. Control Panel – Add/Remove Programs – Select and Remove all Microsoft SQL Server programs
  4. Open regedit and remove all SQL Server folders in this registry key: HKEY_LOCAL_MACHINE/ SOFTWARE/MICROSOFT
  5. Remove SQL Server folders from Program Files directory
  6. Reboot

To remove all SQL server Service you can try this command:

start -> run -> cmd : sc delete [service name]

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