nostr:npub1a63e99s2rj3z82s33ygezxk7sw5yys8mzpkkme4uxuy3wpulrq2sxg2lgq nostr:npub1v9ze48mrwv4rs92aa5tus2mtchs8v8kfn9xfghjkadlfa0swutlqgkyev0 There is in fact one company that supports old windows versions with memory-only patches; https://0patch.com/

I can't really tell if it's all snakeoil or actually effective, as it's proprietary.

I suspect some vulnerabilities are fixable with such method, but many aren't - especially kernel stuff that even admin users aren't allowed to touch.