How do I know if Java and Flash Player are installed on my computer

Hi experts,
I have a presentation tomorrow afternoon.  I need to have java and flash player installed on my machine for the presentation.

How can I tell if Java and Flas Player are installed on my machine?  If they are not, how can I install it?

Thank you,
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You can use these sites to check that they are installed and able to run

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Assuming you are on a Windows machine you could also go to the Control Panel / "Uninstall a Program" and view the list of installed programs on your machine.
mainrotorAuthor Commented:
Thank you very much for your help.  

How do I make sure Java won't be blocked when I try to run the online presentation?

Thank you once again in advance,
I'd make sure you test that everything works before the start of your presentation.
Have you tried it already and ran into issues?

If you have Java installed you could also possibly add the appropriate website to the Exception Site List via the "Java" icon also under Control Panel.
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