jones_supa writes: Microsoft has been very aggressive on getting Windows 7 and 8 users to upgrade to Windows 10. The company has introduced a "Get Windows 10" system tray icon, moved the upgrade to "recommended" category in Windows Update, and even initiated the OS download automatically. The latest trick is almost comical: KB3139929 is an actual security update for Internet Explorer, but it also deploys a trojan horse, KB3146449, which is an advertisement generator for Internet Explorer. On computers not joined to a domain, it adds a blue banner when a user opens a new tab, saying "Microsoft recommends upgrading to Windows 10".
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