It's not neccessary to install flash player for IE if you don't need to use it. I don't have it on my machine but I do keep the non-IE version installed for other browsers.
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Hi,
It depends on which version of Internet explorer your referring to,
ie10 is capable of playing most youtube videos without flash same goes for ie11,
So no you would necessarily need flash for a browser you don't use all of the time,
It = flash would be more of a pest to keep updated
Cheers.
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