How to actually enroll your Windows 10 PC in free security updates — step by step
Microsoft extended free Windows 10 Extended Security Updates (ESU) to October 12, 2027 — but the updates don't just arrive. You have to enroll, and many people don't realise the option is sitting in their settings.
First, check one thing: open Settings → System → About (or run winver) and confirm you're on Windows 10 version 22H2. ESU only works on 22H2; if you're on an older version, run Windows Update to get there first.
To enroll: go to Settings → Update & Security → Windows Update. If your PC qualifies, you'll see an "Enroll now" link. Click it and pick one of three options — two are free: turn on Windows Backup (sync your settings to your Microsoft account), or redeem 1,000 Microsoft Rewards points. The third is a one-time $30. One free-option catch: if you sign out of your Microsoft account for ~60 days, you'll need to re-enroll.
ESU delivers security fixes only — no features, no general bug fixes — so it's a safety net while you plan an eventual move to Windows 11, not a way to stay on 10 forever. Tendvane's Windows Update and security-posture checks confirm your updates actually installed and that your antivirus and firewall are on, so "enrolled" also means "actually protected."