Hi, Try downloading the Adobe Uninstaller to your Desktop:
Then download the Internet Installer for Flash Player and SAVE to your Desktop:
Make sure to use the Administrator account and close all browsers, disable any applications that may be in the system tray( messengers, etc.) Then Run the Uninstaller. When it is finished, Reboot. When fully Rebooted, Rebooot again (to remove old files)
Then Run the Uninstaller and Reboot Once.
Test here: http://www.adobe.com/software/flash/about/
Then check your websites to see if they are now operating properly.
Post back if you have any questions.