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1) Launch Task Manager (Keyboard Shortcut : Ctrl+Shift+Esc)
2) Go to Processes Tab
3) Make sure you have clicked on "Show processes from all users"
4) Kill "iexplore.exe" process
Use offline installer for Adobe Flash Player : Progress bar hangs during download / Unable to connect to server / Unable to download metafile
Easiest way around this:
Download the Flash Player Installer directly by right clicking and selecting "Save target as"
Save the file to your Downloads folder - DO NOT RUN IT yet.
Reboot your system.
BEFORE opening anything else, go to your Downloads folder and run the ActiveX Installer.
Once everything is installed, see:Enabling Flash Player in Internet Explorer and: ActiveX Filtering in Internet Explorer to make 100% sure that Flash Player is enabled and NOT being blocked by ActiveX controls.