Microsoft has previously noted that it won’t be detailing every update that rolls out for the operating system, as such the only information we have is that KB3081455 for Windows 10 contains functionality improvements, and it addresses a number of vulnerabilities described in the new security bulletins: KB3089548, which is a cumulative security update for Internet Explorer. KB3089665 is also a cumulative security update that resolves various vulnerabilities in Microsoft Edge. KB3089656 resolves vulnerabilities in Microsoft graphics components that could allow remote code execution. KB3089669 addresses vulnerabilities in Windows Journal that could allow remote code execution if a user opens a specially crafted journal file. KB3089662 patches .NET Framework that could allow elevation of privilege. KB3089657 addresses vulnerabilities in Windows Task Managements that could cause elevation of privilege, and KB3091287 fixes several issues in Hyper-V that could allow security feature bypass. KB3081455 is available immediately, you can wait until the operating system downloads and install the patch automatically, or you can always go to Windows Update from the Settings app to manually apply the update, which also requires to restart. Source Microsoft 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.