Windows 10's final patch fixes a bewildering number of security flaws – and shows why you need extended updates

Young woman sitting on the floor with a laptop biting nails, nervous and very anxious.

• Windows 10 has received its final security update
• It fixes 172 security flaws in the OS, including six zero-day vulnerabilities
• It's a sobering thought to imagine how these security holes will mount up over the months for those who don't sign up for extended support

Windows 10 has received its last ever update - at least as far as official support goes - and it's something of an eye-opener as to the dangers you might face if you carry on using the operating system beyond its End of Life.