windows server
Microsoft fixes Windows Server 2016 security update failures
Microsoft has fixed a known issue causing the June 2026 security updates to fail on Windows Server 2016 systems that weren’t up to date. The issue was acknowledged in an admin portal service alert confirming IT administrators’ reports of 0x80070002 or FILE_NOT_FOUND errors on affected systems. The bug primarily affected customers attempting to install the KB5094122 update without first installing last […]
Microsoft fixes Windows update failures linked to WUSA installer
Microsoft has fixed a known issue that caused Windows updates released since May 2025 to fail when installed via the Windows Update Standalone Installer (WUSA) from a network share. WUSA is a built-in Windows command-line tool that helps admins install and uninstall Microsoft Standalone Update (.msu) files through the Windows Update Agent API to deploy […]
Microsoft fixes BitLocker recovery bug on Windows Server 2025
Microsoft has resolved a known issue causing some Windows Server 2025 devices to boot into BitLocker recovery after installing the April 2026 security update. The BitLocker security feature encrypts storage drives to prevent data theft and will typically force Windows computers to enter recovery mode after hardware changes or events, such as TPM (Trusted Platform […]
Critical Windows Netlogon RCE flaw now exploited in attacks
The Centre for Cybersecurity Belgium (CCB), the country’s national authority for cybersecurity, warned on Friday that threat actors are now exploiting a recently patched critical Windows Netlogon vulnerability in attacks. Netlogon is a remote procedure call (RPC) interface and a core Microsoft Windows Server background service that authenticates services and users on Windows domain-based networks. Microsoft […]
Microsoft: Domain Controller lookup may fail on Windows Server 2016
Microsoft has confirmed a new known issue affecting Windows Server 2016 systems that causes domain controller lookups to fail after installing the KB5087537 May 2026 security update. Windows Server 2016 reached the end of mainstream support in January 2022, but Microsoft has pushed back the extended support end date by 5 years to allow customers to […]
Microsoft shares mitigation for YellowKey Windows zero-day
Microsoft has shared mitigations for YellowKey, a recently disclosed Windows BitLocker zero-day vulnerability that grants access to protected drives. The security flaw was disclosed last week by an anonymous security researcher known as ‘Nightmare Eclipse,’ who described it as a backdoor and published a proof-of-concept (PoC) exploit. Nightmare Eclipse said that exploiting this zero-day involves placing specially […]
Microsoft confirms April Windows updates cause backup failures
Microsoft has confirmed that the April 2026 security updates are causing failures in third-party backup applications using the psmounterex.sys driver. As GeekFeed reported last week, this issue affects software using VSS (Volume Shadow Copy Service) snapshots and causes failures due to a VSS service timeout. Software impacted by this includes, but is not limited to, products from Macrium (Reflect), Acronis (Cyber […]
Microsoft: New Remote Desktop warnings may display incorrectly
Microsoft has confirmed a new issue causing newly introduced Windows security warnings to display incorrectly when opening Remote Desktop (.rdp) files. This known issue impacts all supported Windows versions, including Windows 11 (KB5083768 & KB5083769), Windows 10 (KB5082200), and Windows Server (KB5082063). As Microsoft explains in updates to the original advisories, “the security warning that appears […]
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 […]