windows
Microsoft fixes Windows Autopatch bug installing restricted drivers
Microsoft has fixed a Windows Autopatch bug that caused driver updates restricted by administrative policies to be deployed on some Autopatch-managed Windows devices in the European Union. According to a service alert first spotted by Microsoft MVP Susan Bradley, the issue affected only a limited number of devices running client Windows platforms (i.e., Windows 11 […]
Microsoft May 2026 Patch Tuesday fixes 120 flaws, no zero-days
Today is Microsoft’s May 2026 Patch Tuesday, with security updates for 120 flaws and no zero-days disclosed. This Patch Tuesday addresses 17 “Critical” vulnerabilities, 14 of which are remote code execution, 2 are elevation of privilege, and 1 is an information disclosure flaw. The number of bugs in each vulnerability category is listed below: When […]
Windows 11 KB5089549 & KB5087420 cumulative updates released
Microsoft has released Windows 11 KB5089549 and KB5087420 cumulative updates for versions 25H2/24H2 and 23H2 to fix security vulnerabilities, bugs, and add new features. Today’s updates are mandatory as they contain the May 2026 Patch Tuesday security patches for 120 vulnerabilities discovered in previous months. You can install today’s update by going to Start > Settings > Windows Update and clicking on ‘Check for Updates.’ You can also manually download and […]
New GhostLock tool abuses Windows API to block file access
A security researcher has released a proof-of-concept tool named GhostLock that demonstrates how a legitimate Windows file API can be abused in attacks to block access to files stored locally or on SMB network shares. This technique, created by Kim Dvash of Israel Aerospace Industries, abuses the Windows ‘CreateFileW‘ API and file-sharing modes to prevent other users and […]
JDownloader site hacked to replace installers with Python RAT malware
The website for the popular JDownloader download manager was compromised earlier this week to distribute malicious Windows and Linux installers, with the Windows payload found deploying a Python-based remote access trojan. The supply chain attack affects those who downloaded installers from the official website between May 6 and May 7, 2026 via the Windows “Download Alternative […]
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 Defender wrongly flags DigiCert certs as Trojan:Win32/Cerdigent.A!dha
Microsoft Defender is detecting legitimate DigiCert root certificates as Trojan:Win32/Cerdigent.A!dha, resulting in widespread false-positive alerts, and in some cases, removing certificates from Windows. According to cybersecurity expert Florian Roth, the issue first appeared after Microsoft added the detections to a Defender signature update on April 30th. Today, administrators worldwide began reporting that DigiCert root certificate entries were flagged as malware and, on […]
Microsoft fixes Remote Desktop warnings displaying incorrectly
Microsoft has fixed a known issue causing newly introduced Windows security warnings to display incorrectly when opening Remote Desktop (.rdp) files. This known issue affects all supported Windows versions, including Windows 11 (KB5083768 & KB5083769), Windows 10 (KB5082200), and Windows Server (KB5082063), on devices with multiple monitors and different display scaling settings. Microsoft addressed the bug in the optional KB5083631 preview […]
Microsoft now lets admins choose pre-installed Store apps to uninstall
Microsoft has updated a Windows 11 in-box app removal policy introduced in October to include a dynamic list that lets IT admins choose which preinstalled Store apps to uninstall. The updated RemoveDefaultMicrosoftStorePackages policy enables admins to remove any preinstalled MSIX/APPX app by referencing its Package Family Name (PFN) using Group Policy Object (GPO) or a custom OMA-URI […]
Windows 11 KB5083631 update released with 34 changes and fixes
Microsoft has released the KB5083631 optional cumulative update for Windows 11, which includes 34 changes, such as a new Xbox mode for Windows PCs, enhanced security and performance for batch files, and performance improvements for launching startup apps. KB5083631 is a preview update that lets admins test Windows bug fixes, improvements, and new features, before they’re generally available […]