pst files

Microsoft released an out‑of‑band cumulative update for Windows 11, version 23H2—KB5078132 (OS Build 22631.6495)—on January 24, 2026 to address a set of post‑Patch‑Tuesday regressions and to roll together prior January fixes into a single package for affected systems. The package is explicitly...

The January cumulative for Windows 11 (KB5074109) introduced a regression that can render the classic Outlook (Win32) client unresponsive for users who rely on POP accounts or store PST files inside cloud‑synced OneDrive folders — Microsoft has acknowledged the problem and recommended temporary...

Microsoft's unusual instruction to remove a Windows cumulative security update has placed administrators and everyday users in a difficult, high-stakes choice: accept the immediate return of core functionality or keep a patch that protects against security threats. Microsoft identified the...

Microsoft has done something it rarely does: told affected Windows 11 users to uninstall its January 13, 2026 security update (KB5074109) while engineers investigate widespread system and application breakages that followed the patch's rollout. The guidance comes after reports of severe...

Microsoft’s January servicing wave has produced a messy and consequential regression: a cumulativetive update released on January 13, 2026 (KB5074109) introduced a file-access problem that can leave apps — most notably classic Microsoft Outlook when its PST files live in OneDrive or other...

A routine Patch Tuesday release on January 13, 2026 has left a significant portion of classic Outlook users scrambling: the Windows 11 cumulative update KB5074109 and a separate Outlook Current Channel build have each introduced regressions that render parts of the traditional Outlook experience...

Microsoft's first cumulative Windows 11 update of 2026 — delivered as KB5074109 on January 13 — has left a broad trail of disruption: critical security fixes were installed, but several high-impact regressions followed, forcing Microsoft into rapid damage control with out‑of‑band patches and...

Microsoft has warned that the January 13, 2026 cumulative security update for Windows — published as KB5074109 — can leave the classic (Win32) Outlook client unusable for many users, particularly those using POP profiles or storing .pst data files in cloud‑synced folders such as OneDrive; the...

Microsoft’s January cumulative update, KB5074109, has created a painful, real‑world problem for users of the classic (Win32) Outlook client — and Microsoft’s interim guidance is blunt: move PST files out of cloud‑synced folders (or use webmail) until a permanent fix arrives. The fallout includes...

Microsoft has confirmed a fresh wave of regressions tied to the January Patch Day security updates: some applications may stop responding or report errors when opening or saving files stored in cloud-synced locations such as OneDrive or Dropbox, Outlook Classic profiles that store PSTs on...

Microsoft has confirmed that its January security update can leave Outlook unstable when users open or save files that live in cloud‑backed folders such as OneDrive or Dropbox — a problem that in some configurations causes the classic Outlook desktop client (especially profiles using POP and PST...

Microsoft’s overhaul of its Outlook experience on Windows 11 has been one of the most closely watched transitions in the productivity software space. As Microsoft pushes its users—individuals, small businesses, and enterprise clients—toward the new Outlook for Windows, a recurring question has...

The relentless evolution of Microsoft’s digital workspace continues with the June 2025 update to the new Outlook for Windows, marking a dramatic step forward in both compatibility and artificial intelligence integration. This update isn’t just another batch of incremental improvements—it’s a...

Microsoft has once again signaled its relentless commitment to refining user experience with the June 2025 update for the new Outlook on Windows—a release that, while still surrounded by a sense of ambivalence from longtime Outlook fans, delivers a meaningful suite of feature enhancements and...

For many years, Microsoft Outlook has held the title of the business world’s de facto email client, synonymous with the broader Microsoft 365 productivity ecosystem. The ongoing transformation of Outlook, especially the controversial shift from the classic native app to a web-based experience...

The latest developments surrounding Microsoft’s New Outlook for Windows have sparked renewed debate in both enterprise IT circles and the broader community of Windows enthusiasts. For years, the transition from Classic Outlook to the New Outlook app has provoked strong reactions—frequently...

Microsoft’s Windows 11 has brought a wealth of features and a refreshed interface—but with creativity sometimes comes clutter. If you’re noticing more ads, suggestions, and nudges for Microsoft services everywhere—from your Start menu to pop-up notifications—rest assured you’re not alone. In...

If you’re serious about managing emails, calendars, or contacts, chances are you've wrestled with Microsoft Outlook. But with all its sophistication, Outlook isn't immune to the occasional hiccup, especially when dealing with PST (Personal Storage Table) or OST (Offline Storage Table) files...

Windows 10 users, brace yourselves: a shiny (or not-so-shiny) new iteration of the Microsoft Outlook application is making its way onto your machines—automatically, no less. Let’s dig deep into what this means for Windows 10 users and how it fits into Microsoft's broader strategy as the...

In a significant shift that underscores its commitment to the new Outlook experience, Microsoft has accelerated the integration of support for .pst (Personal Storage Table) files within its revamped Outlook application. This comes as the company prepares to retire the Windows 11 Mail & Calendar...