When I close a .pdf file the program continues to use the CPU I have to go into Task Manager and End Task

Hi
When I close a .pdf file in Adobe Reader the program continues to run on the CPU until I go into the Task Manager and End Task.
I am running Windows 8 with Adobe Reader Ver 11.0.07, I have uninstalled the reader and reinstalled also checked for updates and ask the program to check the installation, which it did with no change I still have the problem ?.
Peter

Hi Peter,
Please check the performance by disabling the 'Protected mode' in Reader.
Edit > Preferences > Security (Enhanced) > Enable Protected Mode at startup
Uncheck this option. Click on Ok.
Close and launch Reader and check.
Ref.: http://helpx.adobe.com/acrobat/kb/protected-mode-troubleshooting-reader.html
Regards,
Rave

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