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Latest Windows Updates Introduce Exchange Server Issues
Winsage
October 19, 2026

Latest Windows Updates Introduce Exchange Server Issues

Organizations using on-premises Microsoft Exchange Server are experiencing stability issues after the October 2026 Windows Server updates, which Microsoft has confirmed can lead to unreliable Exchange services, especially in environments with heavier workloads. Administrators have reported problems such as connectivity failures with Outlook on the web, disruptions in mail flow, and complications with database availability groups (DAG), all emerging post-update. This bug affects Exchange Servers on Windows Server versions 2016, 2019, 2022, and 2025. Microsoft has identified that the issue is related to limitations in Endpoint Mapper requests and has recommended a registry-based mitigation to improve capacity and reduce service degradation. The default limit of 512 simultaneous Endpoint Lookup calls may be insufficient under heavy load. Microsoft is investigating the issue and will provide further information. Organizations are advised to maintain critical security updates while implementing additional mitigation measures and closely monitoring affected systems until a long-term solution is found.
Windows RAM at 91%? Use RAMMap to see what’s actually taking up memory
Winsage
October 19, 2026

Windows RAM at 91%? Use RAMMap to see what’s actually taking up memory

A reading of 91% RAM usage in Task Manager does not necessarily indicate that a PC is short on memory. Microsoft’s RAMMap tool provides a detailed breakdown of memory usage into categories such as Active, Standby, Modified, and Free memory. Task Manager presents a single total for memory usage, which can be misleading. An 8GB PC may show 7.1GB used out of 7.8GB without detailing the composition of that figure. Windows retains recently used app data in Standby, allowing for quick access, which means Standby memory is counted as Available. RAMMap categorizes memory usage as follows: - Active: Memory currently utilized by applications and system processes. - Standby: Cached pages that can be reclaimed by Windows. - Modified: Pages that have been altered and need to be written to storage. - Free and Zeroed: Pages ready for reuse. In a test, RAMMap showed 6.96GiB Active, 580MiB Standby, 263MiB Modified, and approximately 36MiB of Free plus Zeroed memory. Task Manager reported 685MB Available, mostly from cached memory. Committed refers to virtual memory allocated to applications, while Compressed indicates memory reduced in size by Windows. Resource Monitor offers a built-in view of memory usage. Emptying the Standby list using RAMMap reallocates memory rather than creating it, as shown in a scenario where Standby memory decreased from 996MiB to 258MiB, but Task Manager’s Available figure dropped from 1.32GB to 921MB. If Available memory consistently diminishes and the PC lags, adding more RAM may be necessary. Windows counts Standby memory as Available because it can be reclaimed quickly. RAM cleaner apps do not effectively increase Available memory, as Windows rebuilds the cache from the drive. Committed in Task Manager does not mean RAM in use; it refers to virtual memory allocated to applications.
Microsoft Wants to Protect Your Linux Desktop with Defender
Tech Optimizer
October 17, 2026

Microsoft Wants to Protect Your Linux Desktop with Defender

Microsoft has expanded its Defender security software to Linux desktop environments, currently in public preview. Microsoft Defender for Endpoint is designed for organizations using Linux workstations and aims to enhance security for developers who interact with sensitive resources. Key features include real-time antivirus protection, endpoint detection and response, threat investigation, vulnerability management, and centralized security monitoring. The software uses the same deployment packages and installation methods as those for Linux servers, supporting distributions like Ubuntu LTS, Debian, Fedora, Red Hat Enterprise Linux, openSUSE Leap, SUSE Linux Enterprise, Rocky Linux, and AlmaLinux. Compatibility with desktop environments is based on the underlying distribution and kernel. The software identifies devices by assessing operating system metadata, and if it cannot classify a machine as a workstation, it defaults to identifying it as a server. This development follows the introduction of Defender for Linux servers in 2020. Organizations need a Microsoft Defender for Endpoint subscription and must meet Linux system requirements to use the software.
Faster protection, fewer interruptions: How Microsoft Edge is rethinking updates
Winsage
October 16, 2026

Faster protection, fewer interruptions: How Microsoft Edge is rethinking updates

Microsoft Edge is developing a seamless-updates prototype that allows security updates to be applied without interrupting users' work. Currently, the browser has a Restart to update on idle feature that applies updates when devices are not in use. The goal is to eliminate the need for users to click an update button, enabling background updates that do not disrupt ongoing tasks. Microsoft Edge can also issue patches independently of the Chromium release schedule for urgent security needs. Additionally, Security Update Alerts help organizations manage updates by notifying administrators about critical updates and vulnerabilities. These alerts are available for managed Windows devices through the Edge management service without additional licensing.
How to protect your PC from malware
Tech Optimizer
October 16, 2026

How to protect your PC from malware

Malware, short for "malicious software," is designed to gain unauthorized access to computers or networks for purposes such as data theft and surveillance. It can be introduced through disguised software or deceptive links. To protect against malware, it is essential to install antivirus software, scan external drives before connecting them, be cautious about downloads, avoid suspicious websites and emails, update applications regularly, enable Tamper Protection on Windows, minimize file sharing, enable Firewall protection, watch out for phishing attacks, and back up data regularly. The future of malware protection may involve leveraging artificial intelligence and machine learning to enhance detection and analysis of threats.
Ledger Atom: Ledger's $849 Android Security Device Ships 2027
AppWizard
October 15, 2026

Ledger Atom: Ledger’s $849 Android Security Device Ships 2027

Ledger has introduced the Ledger Atom, a hardware signer designed to run standard Android applications while ensuring robust security features. It operates on a dual-mode system, using Android Open Source Project software for everyday tasks and Ledger OS on a Common Criteria EAL6+ certified Secure Element for sensitive operations. The device features a secure chip, a dedicated screen, and a Privacy Switch to disable the camera and microphone. It is equipped with a 6.77-inch AMOLED display, a 50 MP rear camera, a 32 MP front camera, and connectivity options including 4G and 5G via eSIM. The Atom is a data-only device that does not support traditional voice calls or SMS. It is priced at 9 for the Founders Edition, with shipping expected in the second quarter of 2027.
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