Peter, Whatever it is on your machine (I cannot reproduce it on anything), we rely on MSI to work correctly. Except MariaDB service entry , we do not create any registry entries ourselves, we rely on MSI to create and to cleanup correctly when it is finished. And, on every machine I touched so far, it has worked correctly. But If this does not work, on whatever reasons, the correct address to complain is Microsoft. From: Peter Laursen [mailto:peter_laursen@webyog.com] Sent: Samstag, 22. Juni 2013 18:20 To: Vladislav Vaintroub Cc: Maria Developers Subject: Re: [Maria-developers] Uninstalling MariaDB 5.2 does not remove everything. refresh does not work. clsong control panel and opening again also not. deleteing the registry keys [HKEY_CURRENT_USER\Software\Microsoft\Installer\Products\3DC5D27742DD8714EA85F2707228779F] "ProductName"="MariaDB 5.2 (x64)" "PackageCode"="B1AC285B4BC88BC4384EB09D8858B043" "Language"=dword:00000409 "Version"=dword:05020005 "Assignment"=dword:00000000 "AdvertiseFlags"=dword:00000184 "InstanceType"=dword:00000000 "AuthorizedLUAApp"=dword:00000000 "DeploymentFlags"=dword:00000003 "Clients"=hex(7):3a,00,00,00,00,00 [HKEY_CURRENT_USER\Software\Microsoft\Installer\Products\3DC5D27742DD8714EA85F2707228779F\SourceList] "PackageName"="mariadb-5.2.5-winx64.msi" "LastUsedSource"=hex(2):6e,00,3b,00,31,00,3b,00,43,00,3a,00,5c,00,55,00,73,00,\ 65,00,72,00,73,00,5c,00,50,00,65,00,74,00,65,00,72,00,5c,00,44,00,65,00,73,\ 00,6b,00,74,00,6f,00,70,00,5c,00,00,00 [HKEY_CURRENT_USER\Software\Microsoft\Installer\Products\3DC5D27742DD8714EA85F2707228779F\SourceList\Media] "1"=";" [HKEY_CURRENT_USER\Software\Microsoft\Installer\Products\3DC5D27742DD8714EA85F2707228779F\SourceList\Net] "1"=hex(2):43,00,3a,00,5c,00,55,00,73,00,65,00,72,00,73,00,5c,00,50,00,65,00,\ 74,00,65,00,72,00,5c,00,44,00,65,00,73,00,6b,00,74,00,6f,00,70,00,5c,00,00,\ 00 [HKEY_CURRENT_USER\Software\MariaDB 5.2 (x64)] [HKEY_CURRENT_USER\Software\MariaDB 5.2 (x64)\Uninstall] "shortcuts"="1" "shortcuts.commandline"="1" "shortcuts.commandprompt.db"="1" .. not either. At least not as long as system is not restarted. Running an old version of 'jv16' (2010 version) registry cleaner does not remove it either. BTW: what a horrible lot of garbage that is left over from MariaDB 5.2 in registry! Entries for every charset, script and executable - and more. Not a big issue (lots of programs has this problem and Windows handles it, but just FYI!) -- Peter On Sat, Jun 22, 2013 at 6:10 PM, Vladislav Vaintroub <wlad@montyprogram.com> wrote: I believe you just need to refresh this “Control Panel\Programs\Programs and Features” window with F5. I would guess that you had 2 such windows open, before uninstall, and the window you have open contains old state prior to deinstallation, and this state needs to be refreshed , with F5 From: Maria-developers [mailto:maria-developers-bounces+wlad <mailto:maria-developers-bounces%2Bwlad> =montyprogram.com@lists.launchpad.net] On Behalf Of Peter Laursen Sent: Samstag, 22. Juni 2013 17:18 To: Maria Developers Subject: [Maria-developers] Uninstalling MariaDB 5.2 does not remove everything. For @wlad I guess: After uninstalling MariaDB 5.2.on Win7/64 some (don't remember which minor version), it remains in the list of installed programs in Control Panel .. Programs. Trying to uninstall displays this dialog (translates to "This action is only valid for programs currently installed"). I did not try if rebooting system would remove the item from the list. It may also have been fixed in the installer since the 5.2 release I installed. -- Peter