For SQL database Uninstall incomplete phenomenon, do the following summary:
1, Control Panel uninstall
first, open the Control Panel, sort by installation time, and uninstall the SQL Server series components
2, using 360 to remove the SQL Server series components (also sorted by time)
3, using Windows Install clean up software
Microsoft's own uninstall software, using it to seamlessly uninstall Microsoft's series of software. With the Windows Installer Cleanup Utility, you can remove the Windows Installer configuration information for your program. If you experience an installation (Setup) problem, you may need to remove the Windows Installer configuration information for your program.
For example, when you first install a program without including one of these components, you may have to delete the program's Windows Installer configuration information If you experience installation problems when you add (or remove) this component.
4, manually uninstall, manual to delete operations. (1) Delete the following registry subkey:
Hkey_local_machinesoftwaremicrosoftmssqlserver
hkey_local_machinesoftwaremicrosoft Microsoft SQL Server
Hkey_local_machinesystemcurrentcontrolsetservicesmssqlserver
Hkey_local_machinesystemcurrentcontrolsetservicessqlserver AGENT
hkey_local_machinesystemcurrentcontrolsetservices MSSQLServerADHelper
(2) manually deletes the installation directory, which is located by default:
c:program FilesMicrosoft SQL Server
C:Program Files (x86) Microsoft SQL Server
c:usersadministrator please look carefully ... (3) Uninstall the Microsoft Search Service and also remove:
Hkey_local_machinesoftwaremicrosoftsearch
(4) Uninstall Microsoft Full-text Query, also need to delete:
Hkey_local_machinesystemcurrentcontrolsetservicesmsftpsvc
Hkey_local_machinesystemcurrentcontrolsetservicesmsscntrs
Hkey_local_machinesystemcurrentcontrolsetservicesmssearch
Hkey_local_machinesystemcurrentcontrolsetservicesmssgatherver
hkey_local_machinesystemcurrentcontrolsetservicesmssgthrsvc
Hkey_local_machinesystemcurrentcontrolsetservicesmssindex
(5) If you want to uninstall a named instance, add "/" and the corresponding instance name after the corresponding registry key mssqlserver,sqlserveragent and MSSQLServerADHelper.
to this we have successfully uninstalled the SQL Server database.