Windows update fails upon installation of IE11

You might have the problem that some previous installation or uninstallation process of IE did not work correctly and some packages of IE (9,10 or 11) are still installed on your system. You can manually uninstall all packages by running as administrator from cmd.exe:

FORFILES /P %WINDIR%\servicing\Packages /M Microsoft-Windows.
-InternetExplorer-*11.*.mum /c “cmd /c echo Uninstalling package @fname && start /w pkgmgr /up:@fname /norestart”

FORFILES /P %WINDIR%\servicing\Packages /M Microsoft-Windows.
-InternetExplorer-*10.*.mum /c “cmd /c echo Uninstalling package @fname && start
/w pkgmgr /up:@fname /norestart”

FORFILES /P %WINDIR%\servicing\Packages /M Microsoft-Windows.
-InternetExplorer-*9.*.mum /c “cmd /c echo Uninstalling package @fname && start
/w pkgmgr /up:@fname /norestart”

See also

• https://superuser.com/a/1199693
• http://support.microsoft.com/kb/2579295

After doing this your system should be clean and installation of IE11 should work again. If the installation still doesn't work, you might want to try the instructions given at

• https://answers.microsoft.com/en-us/windows/forum/all/i-get-error-9c59-when-updating-internet-explorer/03d4473a-867b-44a5-9a37-913e9a5879cf
• https://jingyangli.wordpress.com/2015/08/18/ie11-install-problem-neutral-package-installation-failed-exit-code-0x00003715-14101-and-setup-exit-code-0x00009c59-40025/