Known Issue
Microsoft tests Windows Explorer speed, performance improvements
Microsoft is rolling out multiple File Explorer changes to Windows 11 users in the Insider program, including improvements to launch speed and performance. While Microsoft didn’t share how the speed and performance improvements are being implemented, it was testing a new feature in November that preloaded File Explorer in the background to improve launch times and performance. […]
Microsoft pulls service update causing Teams launch failures
Microsoft has reverted a recent service update that was preventing some customers from launching the Microsoft Teams desktop client. Affected users are getting stuck on the loading screen and seeing the “We’re having trouble loading your message. Try refreshing.” error message. On Friday morning, after acknowledging the incident (tracked under TM1283300), Microsoft said the launch failures […]
Microsoft: Some Windows servers enter reboot loops after April patches
Microsoft has confirmed that some Windows domain controllers are entering restart loops due to Local Security Authority Subsystem Service (LSASS) crashes after installing the April 2026 security updates. The company also warned that Windows admins may encounter this issue when setting up new domain controllers, or even on existing ones, if the server processes authentication […]
Microsoft: April Windows Server 2025 update may fail to install
Microsoft is investigating an issue causing this month’s KB5082063 security update to fail to install on some Windows Server 2025 systems. On affected systems, users are also reporting seeing 0x800F0983 install errors when trying to deploy the April 2026 cumulative updates. “Microsoft is monitoring diagnostic data reports on update installation failures and has observed a […]
Microsoft: April updates trigger BitLocker key prompts on some servers
Microsoft confirmed on Tuesday that some Windows Server 2025 devices will boot into BitLocker recovery after installing the April 2026 KB5082063 Windows security update. BitLocker is a Windows security feature that encrypts storage drives to prevent data theft. Windows computers typically enter BitLocker recovery mode after hardware changes or events such as TPM (Trusted Platform […]
Microsoft fixes bug behind Windows Server 2025 automatic upgrades
Microsoft has finally fixed a known issue that was causing systems running Windows Server 2019 and 2022 to “unexpectedly” upgrade to Windows Server 2025. The issue was first acknowledged by Microsoft in September 2024, following widespread reports from Windows admins regarding servers that had been automatically upgraded overnight to a Windows Server version for which they didn’t even have a license. […]
Microsoft fixes Classic Outlook bug causing email delivery issues
Microsoft has resolved a known issue that was preventing some Classic Outlook users from sending emails via Outlook.com. As the company explained when it acknowledged the issue last week, affected users were being warned that some of their messages hadn’t reached intended recipients. Microsoft said that those experiencing this issue would encounter it more often when […]
Microsoft links Classic Outlook issue to email delivery problems
Microsoft is investigating a known issue that prevents some Classic Outlook users from sending emails via Outlook.com. Affected users are being warned that their message hasn’t reached some intended recipients, and they will encounter this problem more often when the Outlook.com account they use to send email is an Outlook profile linked to another Exchange […]
New Windows 11 emergency update fixes preview update install issues
Microsoft released an out-of-band update to fix the March 2026 non-security preview update, which was pulled over the weekend due to installation issues. The optional cumulative update (KB5079391) was released on Thursday for Windows 11 24H2 and 25H2 systems, with 29 changes, including Smart App Control and Display improvements. However, right after it started rolling out, users […]
Microsoft pulls KB5079391 Windows update over install issues
Microsoft has pulled a buggy Windows 11 non-security preview update to investigate a known issue that triggers 0x80073712 errors during installation. KB5079391, the problematic optional cumulative update, started rolling out on Thursday to Windows 11 24H2 and 25H2 systems with 29 changes, including Smart App Control and Display improvements. This preview update also improved Windows Hello Fingerprint […]