outlook
Microsoft says Copilot buttons still missing in classic Outlook
Microsoft says it’s still investigating a known issue that causes the Copilot and Copilot Chat buttons in classic Outlook to disappear for some Windows users. As it acknowledged when it announced a fix via a service change in June, this affects only customers with the Copilot Chat (Basic) license or a paid M365 Copilot (Premium) […]
Microsoft fixes Teams, Outlook launch failures on ARM Windows PCs
Microsoft has fixed a bug that prevented Teams and Outlook from launching after installing updates released since the August 2026 Patch Tuesday. The company confirmed last week that this known issue affects users who haven’t installed Microsoft Store updates on ARM-based Windows devices (such as the Surface Pro 11 and Surface Laptop 7) running Windows […]
Microsoft Teams, Outlook fail to launch on ARM-based Windows PCs
Microsoft is working to fix a known issue that causes crashes and launch failures for Microsoft Teams and New Outlook users after installing updates released since the August 2026 Patch Tuesday. These issues affect only ARM-based Windows devices like the Surface Laptop 7 and Surface Pro 11 that run Windows 11 24H2 or later, and […]
Massive Microsoft 365 outage causes auth issues, service failures
Microsoft is investigating a widespread service issue causing authentication issues, connection problems, service delays and failures, and various other issues for Microsoft 365 customers. It first acknowledged this incident (tracked under EX1464935 in the admin center) at 5:30 PM UTC, when it began investigating a stream of reports from users on social media regarding multiple issues affecting Exchange Online. However, while Exchange Online is the […]
Microsoft rolls out Classic Outlook theme for New Outlook users
Microsoft has started rolling out a Classic Outlook theme for users of Outlook on the web and the New Outlook for Windows. This new Outlook theme is rolling out as part of a targeted release beginning mid-August and expected to complete by the end of September. The theme will become generally available worldwide between late […]
Microsoft confirms outage affecting search in Microsoft 365 apps
Microsoft says some users are experiencing issues searching in Microsoft 365 apps, including Outlook on the web, Outlook desktop, SharePoint Online, and OneDrive. According to an incident report seen by GeekFeed and tracked under MO1456424 in the Microsoft 365 Admin Center, the root cause is what Microsoft describes as a recent deployment that causes resource utilization problems. […]
Microsoft to retire the OWA Light client in Exchange Server
Microsoft has announced plans to disable Outlook Web Access (OWA) Light, the lightweight version of the Outlook Web App email client, in a future Exchange Server update. “OWA Light was an important compatibility experience when the web needed it. Today, the full Outlook on the web experience is the right place for us to focus,” the […]
Microsoft fixes bug that removed Copilot buttons in Outlook
Microsoft has fixed a known issue causing the Copilot Chat or Copilot buttons in Classic Outlook to disappear for Windows users with the Copilot Chat (Basic) license. As the company explains in a recent support document, affected users may no longer see Copilot buttons on the side navigation and above the ribbon. Those affected may also […]
Microsoft patches Exchange Server zero-day exploited in attacks
Microsoft has patched an actively exploited Exchange Server vulnerability that allows threat actors to execute arbitrary JavaScript code in cross-site scripting (XSS) attacks targeting Outlook Web Access users. This high-severity spoofing vulnerability (CVE-2026-42897) affects Exchange Server 2016, Exchange Server 2019, and Exchange Server Subscription Edition (SE) software and can be exploited by remote attackers with […]
New TCLBanker malware self-spreads over WhatsApp and Outlook
A new trojan named TCLBanker, which targets 59 banking, fintech, and cryptocurrency platforms, uses a trojanized MSI installer for Logitech AI Prompt Builder to infect systems. Additionally, the malware includes self-spreading worm modules for WhatsApp and Outlook that automatically infect new victims. The new banking trojan was discovered by Elastic Security Labs, whose researchers believe it’s […]