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Community SeniorMod
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 Why shouldn't I continue to run or install an older version of Windows on my new computer?


"Every Windows product has a lifecycle. The lifecycle begins when a product is released and ends when it's no longer supported. Knowing key dates in this lifecycle helps you make informed decisions about when to update, upgrade or make other changes to your software....A device may not be able to run prior versions of Windows if the device hardware is incompatible, lacks current drivers, or is otherwise outside the original equipment manufacturer’s (OEM) support period."


For Windows 10, Windows 7, Windows 8.1, see :

Windows lifecycle fact sheet
Last updated: November 2018

Additional Windows 7 details:

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