open command prompt as administrator
FORFILES /P %WINDIR%\servicing\Packages /M Microsoft-Windows-InternetExplorer-*9.*.mum /c "cmd /c echo Uninstalling package @fname && start /w pkgmgr /up:@fname /norestart"
This removes the IE9 with the help of the command line.
Credits go to Nadine K. (German MS Support Engineer).
The command to roll back IE9 will generate 3 access errors...OK through them and run the command AGAIN in the same command line window it will run without error.
Reboot the machine and the system will be on IE8.
for IE 10 Removal try
FORFILES /P %WINDIR%\servicing\Packages /M Microsoft-Windows-InternetExplorer-*10.*.mum /c "cmd /c echo Uninstalling package @fname && start /w pkgmgr /up:@fname /quiet /norestart"