windows 11 patch

If you’re running Windows 11, update now — Microsoft has closed a high‑severity remote code execution flaw in the modern Notepad app that could let a single click in a Markdown file turn into code execution under your user account. Background: Notepad’s unexpected attack surface Notepad has been...

Microsoft has pushed KB5074105 to the Windows Insider Release Preview channel, delivering builds 26100.7701 and 26200.7701 with a mix of targeted bug fixes, accessibility and creator-focused upgrades, and a handful of system‑level security and deployment changes that administrators and...

Microsoft pushed an emergency out‑of‑band update late last week to repair a regression introduced by its January security rollup that left Outlook and other programs unable to open or save files stored in cloud‑backed folders such as OneDrive and Dropbox. The fix — delivered as KB5078127 for...

Outlook crashing on Windows 11 after January’s Patch Tuesday left inboxes frozen, mailboxes mismatched, and IT teams scrambling — and Microsoft’s emergency out-of-band update finally appears to have stopped the worst of it. The fix targets a flaw introduced by the January 13, 2026 security...

Microsoft’s January baseline cumulative, KB5074109, delivers a heavy set of security and quality fixes — including an important NPU power-state correction and preparatory Secure Boot certificate work — but it also introduced a client-side regression that can break Azure Virtual Desktop (AVD) and...