Source: Chris Hoffman, HowToGeek.com, January 9, 2018
Warning: Even if you’ve installed patches from Windows Update, your PC may not completely protected from the Meltdown and Spectre CPU flaws.
Here’s how to check if you’re fully protected, and what to do if you aren’t.
To fully protect against Meltdown and Spectre, you’ll need to install a UEFI or BIOSupdate from your PC’s manufacturer as well as the various software patches.