Microsoft’s first Windows 11 security update of 2026 broke shutdowns and some Remote Desktop sign-ins. Microsoft has released emergency out-of-band fixes via Windows Update, including KB5077744 and KB5077797.

The first big Windows 11 update of 2026 is landing as more than a routine security patch, bringing a wave of fixes that touch everything from battery life on cutting edge laptops to long standing networking quirks.

Windows 11 January 2026 Update is rolling out for Windows 11 25H2, 24H2, and 23H2, as well as Windows Server 2025 and 2023.

Windows 11 KB5074109 is causing crashes, reboots, black screens, and BSOD errors for some users, but workaround is available.

Microsoft has released Windows 11 KB5074109 and KB5073455 cumulative updates for versions 25H2/24H2 and 23H2 to fix security vulnerabilities, bugs, and add new features.

Upgrade to Windows 11 or else. Well, it wasn't that alarmist, but the company ended security updates for Windows 10 in October. (Users of the older operating system can still enroll in a free Extended Security Updates program until October 2026.

The Indian government has issued a cybersecurity alert for Windows 10 and Windows 11 users after identifying a vulnerability in Microsoft's Desktop Window Manager. CERT-In has advised users and organisations to install the latest security updates to prevent sensitive data exposure.

Microsoft has recently begun replacing expiring Secure Boot certificates on eligible Windows 11 systems running 24H2 and 25H2, according to a report by BleepingComputer. Secure Boot is an important security feature that prevents malicious software from running during system startup.