servers Archives

Winsage

October 20, 2026

Microsoft To Block ReFS-Formatted USB Drives And External Storage On Windows Starting January 2027

Starting in January 2027, Windows will block ReFS-formatted USB drives and external storage devices by default as part of a security initiative. This change will affect Windows 11, supported Windows 10 installations, and Windows Server. The rollout will occur in two phases: 1. On October 13, 2026, an initial security update will introduce auditing for affected ReFS volumes, allowing them to mount but recording them in the Event Viewer. 2. In January 2027, Windows will prevent affected ReFS volumes from mounting unless overridden by an administrator. This change will not erase the contents of affected drives, but users may lose access to their files. Microsoft has stated that this move aims to reduce exposure associated with unsupported storage configurations. Most users are unlikely to notice immediate effects, as common USB drives use FAT32, exFAT, or NTFS, which are not subject to this restriction. Users with ReFS-formatted external storage should consider transferring their files to a supported format before the deadline. Additionally, Microsoft has introduced a registry and Group Policy setting, RefsRemovableDeviceMountPolicy, to allow for configurable restrictions.

Winsage

October 20, 2026

Microsoft Confirms October Windows Updates Can Break Exchange Server Email Services

Microsoft has acknowledged that the Windows Server security updates released on October 13, 2026, may disrupt Exchange Server email services, affecting on-premises systems running Exchange Server 2016, 2019, and the Subscription Edition. The disruptions can include blocked webmail access and undelivered messages. Microsoft has identified four specific Windows updates linked to these issues: KB5126646 for Windows Server 2025, KB5126655 for Windows Server 2022, KB5126651 for Windows Server 2019, and KB5126868 for Windows Server 2016. Symptoms may include inability to log into Outlook on the web, messages stuck in the Outbox, increased mail queues, and failed mailbox access. A critical error to monitor is MapiExceptionMdbOffline, and affected systems may log Event ID 1006. The October updates introduced a default limit of 512 simultaneous Endpoint Lookup calls, which can be exceeded under heavy Exchange workloads. Microsoft has provided a registry workaround to increase this limit and suggests monitoring for recurring failures. The disruption coincides with the end of the final paid update period for Exchange 2016 and 2019, with future updates limited to the Subscription Edition.

Tech Optimizer

October 20, 2026

Switch Antivirus Software: 13 Steps, Zero Gaps [2026]

ESET rebranded its home security lineup in 2026, introducing ESET HOME Security Essential and Premium, and added automatic ransomware backup to its Ultimate plan. The NOD32 engine was updated to version 19.2 on August 27, 2026. IPVanish launched a next-generation antivirus product on October 7, 2026, built on the VIPRE engine and integrated into its VPN application. Many Australians are reconsidering their antivirus options due to discrepancies between current product names and older installations. A comprehensive 13-step guide has been developed to facilitate the transition to new antivirus software, addressing potential risks such as performance issues from running multiple engines, improper uninstallation, and loss of license keys. In 2026, ESET introduced features like a Website Security Inspector and a Microphone Monitor, while IPVanish's antivirus includes real-time anti-ransomware protection and machine-learning threat detection. Security.org's 2025 report indicated that 84% of users made no changes to their antivirus software over the past year, with many only reconsidering when faced with price increases or product discontinuations. The choice between paid and free antivirus solutions is significant, with 54% of third-party users paying for their software. ESET's Ultimate tier is the only one that includes ransomware backup features. Before switching antivirus products, users should ensure they are running compatible operating systems, have administrator access, document current and new antivirus version numbers, and have a stable internet connection. A PowerShell command can check the current antivirus status. Steps for migration include auditing current antivirus features, choosing a suitable replacement, exporting license keys, and using official removal tools to uninstall the old software. After installation, users should verify real-time protection is active and rebuild exclusions and scan schedules. Common pitfalls during migration include failing to uninstall the old antivirus completely, forgetting to disable tamper protection, and losing exclusion lists. For mobile devices, permissions from the old antivirus must be cleared to avoid conflicts. Advanced users managing multiple devices may benefit from staggering migrations and checking for known vulnerabilities in the antivirus products. A PowerShell script can be created to log the antivirus state before and after migration.

Winsage

October 20, 2026

Microsoft: October Windows Server updates break Exchange sign-in, mail flow

Microsoft has acknowledged that the latest Windows Server security updates are causing sign-in and mail delivery issues for certain Exchange Server systems, particularly affecting users of Windows Server 2019 and beyond. Affected customers report encountering a "MapiExceptionMdbOffline" error and Event ID 1006 in application logs. The October 2026 Windows security update has introduced a default limit on memory allocated to Endpoint Mapper, which may be insufficient under heavy load for Exchange Server workloads. Microsoft clarified that the reported issues are not related to the October 2026 Exchange server security updates and advised against uninstalling them. A temporary workaround involves modifying a registry key to increase the Endpoint Mapper memory limit. Additionally, Microsoft announced it would cease shipping extended security updates for Exchange 2016 and 2019 this month.

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.

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.

Winsage

October 17, 2026

Windows/Exchange Server October 2026 issue: Analysis and Workarounds

On October 13, 2026, Microsoft released security updates for Windows Server that unintentionally affected Microsoft Exchange Server, causing significant disruptions approximately 24 hours after installation. Users reported issues such as database services failing, resulting in unresponsive email and Outlook Web Access access. Microsoft acknowledged the problem and is investigating it. The updates targeted supported Windows Server and Microsoft Exchange versions 2016, 2019, and SE. By October 15, reports of severe issues, including the inability to connect to the server and halted email delivery, emerged. The error message associated with the disruption is "MapiExceptionMdbOffline: Unable to make connection to the server. (hr=0x80004005, ec=1142)." Despite these issues, the Exchange Admin Center still showed databases as connected and mounted. Unofficial workarounds, including a registry edit and a PowerShell script, have been suggested to mitigate the problems.

AppWizard

October 15, 2026

Ledger unveils Atom crypto wallet with Android apps and tamper detection

On October 15, Ledger unveiled the "Atom," a phone-shaped crypto cold wallet designed to enhance security in digital currency transactions. It allows Android-based applications to operate on a separate system from transaction authorization. Reservations are open with a refundable deposit of [openai_gpt model="gpt-4o-mini" prompt="Summarize the content and extract only the fact described in the text bellow. The summary shall NOT include a title, introduction and conclusion. Text: On October 15, Ledger unveiled its latest innovation, the “Atom,” a phone-shaped crypto cold wallet designed to enhance security in the digital currency landscape. This device allows Android-based applications to operate on a distinct system, separate from the one that authorizes transactions. Interested customers can now place reservations, with deliveries anticipated in 2027. This announcement arrives amid Ledger's ongoing efforts to address concerns regarding compromised devices that have surfaced in Southeast Asia. The Atom aims to provide an additional layer of protection against physical tampering, ensuring users can transact with confidence. Everyday apps, separate transaction approvals According to Ledger, everyday applications will function independently from the secure environment that safeguards users’ private keys. When a transaction requires approval, the device's security system takes over the display, illuminating an indicator to signal that users have entered this protected mode. This design empowers individuals to verify their actions rather than relying solely on information presented by standard applications. Moreover, the Atom features a physical switch that allows users to disable the camera and microphone, further enhancing privacy and security. Ledger updates its account of the thefts In light of recent events, Ledger has provided clarity regarding the thefts reported by AMBCrypto on October 9. The company explained that criminals may have acquired legitimate devices, modified them with hidden components, and subsequently returned them to the distribution network through resellers. These components were engineered to capture users' recovery phrases during the registration process, granting access to their wallets for anyone possessing that critical information. Despite these incidents, Ledger asserts that its crypto hardware, operating platform, and servers remain secure from hacking attempts. In response to the situation, the company has temporarily suspended its reseller and distributor sales channels in Southeast Asia and Hong Kong. The Atom is designed with a protective shield to detect any interference with its secure components, reinforcing Ledger's commitment to user safety. Reservations open, but shipping comes later For those interested in the Atom, Ledger has introduced a Founders Edition priced at 9, which can be reserved with a fully refundable deposit of 0. It is important to note that the product is still under development, and aspects such as pricing may be subject to change prior to its official launch. At this stage, the Atom represents Ledger’s vision of integrating everyday applications with hardware-based transaction approval, marking a significant step forward in the realm of crypto security. Final Summary Ledger introduced Atom, combining Android-based apps with separate crypto transaction approvals and claimed tamper protection. Reservations require a refundable 0 deposit, with a special 9 price and delivery expected in 2027." max_tokens="3500" temperature="0.3" top_p="1.0" best_of="1" presence_penalty="0.1" frequency_penalty="frequency_penalty"], and the Founders Edition is priced at , with deliveries anticipated in 2027. The Atom features a physical switch to disable the camera and microphone for enhanced privacy. Ledger has temporarily suspended reseller and distributor sales channels in Southeast Asia and Hong Kong due to recent theft concerns involving modified devices. The Atom includes a protective shield to detect interference with its secure components.

AppWizard

October 15, 2026

Experts warn cheap Android phones are shipping with malware

Cybersecurity experts from Bitdefender have found that budget Android smartphones, such as the Doogee S200 X, Doogee Fire 3 Max, and Cubot KINGKONG X, may come pre-loaded with malware embedded in their firmware, posing significant security risks. This malware is introduced during the manufacturing process, particularly affecting devices with MediaTek chipsets. Thousands of users in around 150 countries, including Mexico, France, Italy, the United States, Germany, Brazil, and Spain, have been impacted. Bitdefender identified a network of 32 malicious applications disguised as legitimate utilities that generate fraudulent ad impressions. Some infected phones can function as residential proxies for criminal activities, including spam campaigns and DDoS attacks. Uninstalling the malicious app may not eliminate the infection if it is integrated into the system software, potentially requiring firmware-level remediation. Buyers of budget phones should research manufacturers' supply chain control and commitment to security updates.

Winsage

October 14, 2026

Canada could save millions by developing its own operating system instead of relying on Microsoft Windows

Canada is focusing on digital sovereignty in sectors like cloud computing and telecommunications, but the operating systems for government computers have received less attention. A study suggests that adopting a national, free, and open-source operating system could save Canada millions over the next decade and reduce reliance on U.S. technology providers. Currently, Microsoft Windows dominates the Canadian desktop market with a 63.75 percent share, costing the government over 0 million annually. Trust in U.S. technology has declined among Canadians, with 60 percent feeling they can never trust Americans the same way again. Open-source alternatives like Linux exist, which could be adapted into a national operating system based on Debian, allowing Canada to inspect and modify the code. Other countries, such as China and Germany, have developed their own operating systems, achieving significant savings. Transitioning to an open-source system would involve costs estimated between million and million over two years, compared to Germany's ZenDiS initiative. The projected gross savings from switching operating systems over ten years could range from 0 million to .13 billion, benefiting various sectors by reducing licensing fees and enhancing national security.