For SQL database unloading incomplete phenomenon, did the following summary:
1 , Control Panel Uninstall
First, open the Control Panel, sort by installation time, and uninstall the SQL Server family components
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2 , using 360 to delete SQL Server family components (also sorted by time)
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3 , using Windows Install clean up software
Microsoft's own uninstall software, which can be used to perfectly uninstall Microsoft's series of software. With the Windows Installer Cleanup Utility, you can remove Windows Installer configuration information for your program. If you encounter an installation (Setup) problem, you may need to remove the program's Windows Installer configuration information.
For example, when you install a program for the first time without including one of these components, you may have to remove the Windows Installer configuration information for the program if you experience installation problems when you add (or remove) this component.
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4 , manually uninstall, manual to delete the operation.
(1) Delete the Book subkey:
HKEY_LOCAL_MACHINE\Software\Microsoft\MSSQLServer
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\ Microsoft SQL Server
Hkey_local_machine\system\currentcontrolset\services\mssqlserver
hkey_local_machine\ System\currentcontrolset\services\sqlserver AGENT
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services \ MSSQLServerADHelper
(2) manually deletes the installation directory, which by default is:
C:\Program Files\Microsoft SQL Server
C:\Program Files ( x86) \microsoft SQL Server
C:\Users\Administrator\ please look carefully ...
(3) To uninstall the Microsoft Search Service, you also need to delete:
Hkey_local_machine\software\microsoft\search
(4) To uninstall the Microsoft full-text query, you also need to delete:
Hkey_local_machine\system\currentcontrolset\services\msftpsvc
Hkey_local_machine\system\currentcontrolset\services\msscntrs
Hkey_local_machine\system\currentcontrolset\services\mssearch
Hkey_local_machine\system\currentcontrolset\services\mssgatherver
Hkey_local_machine\system\currentcontrolset\services\mssgthrsvc
Hkey_local_machine\system\currentcontrolset\services\mssindex
(5) If you are uninstalling a named instance, add "/" and the corresponding instance name after the corresponding registry key, Mssqlserver,sqlserveragent and MSSQLServerADHelper.
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