Credit: Credit: Smith Collection/Gado/Getty ImagesIf you're a Windows user, you've hopefully installed regular Patch Tuesday updates from Microsoft, which address critical security vulnerabilities across the company's software. The August Patch Tuesday release this week is no different: The update fixes 400 flaws, including three zero-days. (The company noted that this also directly contributes to the increase in security updates included in Patch Tuesday). Windows users should ensure security updates are installed as soon as they're available to minimize the risk of active exploits. However, you can check the status under Start > Settings > Windows Update > Check for Windows updates.