According to the Microsoft support page, KB3074674 is a cumulative security update that “resolves a vulnerability in Windows that could allow elevation of privilege if the Windows Installer service incorrectly runs custom action scripts.” “Additionally, this update includes non-security-related changes to enhance the functionality of Windows 10 through new features and improvements. “ Gabriel Aul, head of the Windows Insider Program, Tweeted the announcement early today.

— Gabriel Aul (@GabeAul) July 21, 2015   This is not the only update the company released for Windows 10, earlier this week Microsoft made available KB3074667, which is another patch that resolved a security vulnerability in the operating system. And last weekend, the company also released a small update described as KB3074665 to fix several bugs and patch a few security wholes. The new update KB3074674 is available for download immediately and it’s an update that requires to restart your system. Source Twitter via Windows Central All content on this site is provided with no warranties, express or implied. Use any information at your own risk. Always backup of your device and files before making any changes. Privacy policy info.