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Microsoft begins cracking down on people dodging Windows 11's system requirements
(www.xda-developers.com)
This is a most excellent place for technology news and articles.
Vista was absolutely the slowest thing imaginable. They reduced the requirements as part of a marketing campaign for "Vista-ready" PCs, but PCs that ran it "well" were few and far between. Even after 7 came out if you went back to Vista it was noticeably slower.