Windows computers

Tech Optimizer
May 12, 2025
Defendnot is a tool that disables Windows Defender by using the Windows Security Center (WSC) API, presenting itself as a legitimate antivirus solution. It was created by a developer named “es3n1n” and follows the removal of a previous tool called “no-defender.” The tool engages directly with WSC, which disables Windows Defender when third-party antivirus software is installed to avoid conflicts. Defendnot was developed through reverse engineering of the WSC service and involves understanding how WSC verifies processes. It registers a phantom antivirus product using COM interfaces and undocumented Windows APIs, leading Windows to disable its built-in protection. The tool requires administrative privileges to operate and adds itself to autorun to maintain its functionality after a reboot. Security experts express concern about its potential misuse by malware authors, while it also provides insights into vulnerabilities in Microsoft’s security architecture.
Winsage
May 7, 2025
Microsoft has introduced a suite of Windows experiences for Copilot+ PCs, featuring AI agents that help users adjust settings on their computers by interpreting user intent and automating tasks with consent. Users can communicate in natural language to receive guidance or have changes executed directly. This feature will initially be available to English-speaking Windows Insiders on Snapdragon-powered devices, with plans for broader support. Additionally, Microsoft is enhancing Windows search capabilities and expanding Click to Do actions, allowing users to schedule meetings, send messages, consult M365 Copilot, convert data in Excel, and draft documents in Word. Creative tools like Photos, Paint, and the Snipping Tool are receiving updates, including dynamic lighting controls in Photos, a sticker generator in Paint, and new capture capabilities in the Snipping Tool. Upcoming features for Windows 11 Insiders include a phone companion for the Start menu, AI-driven actions in File Explorer, and a new writing function in Notepad for generating text from prompts. Microsoft is also testing a "Draw & Hold" feature in the Snipping Tool and has introduced a text rewriting tool called "Rewrite."
Winsage
April 17, 2025
Unexpected crashes on Windows 11 version 24H2 have been reported, resulting in a secure kernel fatal error with the blue screen exception error code 0x18B. Microsoft has introduced a Known Issue Rollback (KIR) to address this issue by rolling back specific updates. For personal or non-managed computers, the fix will be automatically deployed via Windows Update, and users are advised to restart their PCs. For enterprise devices, IT departments must install the KIR Group Policy, found under Computer Configuration > Administrative Templates, and a restart of affected devices is required. The blue screen bug appeared after a Patch Tuesday update that addressed 134 security vulnerabilities, including a zero-day flaw.
Tech Optimizer
April 5, 2025
McAfee and Trend Micro are two antivirus software options with distinct features. Specifications: - McAfee costs per year for a single user; Trend Micro starts at per year for 2 adults and 4 children. - McAfee supports Windows 10 and 11; Trend Micro supports Windows 8.1 to 11. - Malware protection is rated as good for McAfee and adequate for Trend Micro. - Both do not offer backup software. - System resource usage is light to heavy for both. Costs and Coverage: - Both do not have a free tier but offer a 30-day trial. - Trend Micro's entry-level Antivirus + Security is priced at , while McAfee's Basic plan typically retails for for a single device. - Trend Micro offers packages for 3 devices, 5 systems, and 10 systems, while McAfee's plans cover up to two adults and four children. Antivirus Protection: - Trend Micro uses heuristic behavioral analysis, while McAfee employs cloud-based infrastructure and machine learning. - Both provide periodic updates, but McAfee features Ransom Guard for monitoring file changes. Antivirus Performance: - McAfee has a 99.8% protection rate; Trend Micro has a 98.1% rate. - McAfee has fewer false positives (10) compared to Trend Micro (76). Security and Privacy Features: - Trend Micro includes a Firewall Booster; McAfee emphasizes phishing protection and personal data privacy. Performance and System Impact: - Trend Micro has minimal impact on system resources; McAfee uses more resources during scans. Interface: - Trend Micro's interface is user-friendly; McAfee's interface is simplified but less customizable. Installation and Support: - McAfee's installation takes under five minutes; Trend Micro's takes over twelve minutes. - McAfee offers 24/7 support; Trend Micro's support is limited to business hours unless on a premium plan. Overall, McAfee is rated higher in performance and features, while Trend Micro is noted for its efficient resource management and user-friendly interface.
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