microsoft
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 releases emergency updates to fix Windows Server issues
Microsoft has released out-of-band (OOB) updates to fix issues affecting Windows Server systems after installing the April 2026 security updates. As Microsoft confirmed last week, some admins may experience failures when installing the KB5082063 security update on Windows Server 2025 devices. Additionally, this month’s Patch Tuesday cumulative updates are causing some Windows servers with domain controller […]
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 […]
Recently leaked Windows zero-days now exploited in attacks
Threat actors are exploiting three recently disclosed Windows security vulnerabilities in attacks aimed at gaining SYSTEM or elevated administrator permissions. Since the start of the month, a security researcher known as “Chaotic Eclipse” or “Nightmare-Eclipse” has published proof-of-concept exploit code for all three security issues in protest to how Microsoft’s Security Response Center (MSRC) handled […]
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 pays $2.3M for cloud and AI flaws at Zero Day Quest
Microsoft has awarded $2.3 million to security researchers after receiving nearly 700 submissions during this year’s Zero Day Quest hacking contest. Tom Gallagher, Vice President of Engineering at Microsoft Security Response Center (MSRC), said that over 80 flaws found during the live event at Microsoft’s Redmond campus were high-impact cloud and AI security vulnerabilities. “During the […]
CISA flags Windows Task Host vulnerability as exploited in attacks
CISA warned U.S. government agencies to secure their systems against a Windows Task Host privilege escalation vulnerability that could allow attackers to gain SYSTEM privileges. Task Host is a core Windows system component that serves as a container for DLL-based processes, allows them to operate in the background, and ensures they close properly during shutdown […]
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 adds Windows protections for malicious Remote Desktop files
Microsoft has introduced new Windows protections to defend against phishing attacks that abuse Remote Desktop connection (.rdp) files, adding warnings and disabling risky shared resources by default. RDP files are commonly used in enterprise environments to connect to remote systems because admins can preconfigure them to automatically redirect local resources to the remote host. Threat […]