Windows security Archives

Winsage

February 27, 2026

De-Enshittify Windows 11: Make Windows 11 More Secure ⭐

Windows 11 offers a mix of security and privacy features, with a recommendation for users to opt for a Copilot+ PC with a Qualcomm Snapdragon X-series processor for enhanced security. Most users log in with a Microsoft account, which provides benefits such as two-factor authentication, device-bound passkeys, account recovery options, and automatic disk encryption. However, using a local account poses security risks, including limited recovery options and lack of support for key security features. To secure Windows 11, users should take several steps during initial setup or later, including enabling Windows Security features, verifying device encryption, and enhancing sign-in security through Windows Hello options like facial and fingerprint recognition. Additional security features such as Controlled Folder Access and Smart App Control can be configured for better protection. Users are advised to remove unnecessary third-party security apps and keep Windows 11 and installed applications up-to-date to maintain security. Regular updates and proper configuration of Windows Update settings are also essential for preventing disruptions and ensuring data safety.

Tech Optimizer

February 26, 2026

Avast Antivirus Just Got Smarter: Is It Finally Worth Your Money?

Avast Antivirus has introduced advanced AI tools, enhanced browser protection, and new privacy features in the U.S. market. It offers real-time malware protection, phishing shields, and Wi-Fi scanning. Avast's product lineup includes a free version, a premium security plan, and Avast One, catering to different user needs. Independent lab tests show Avast ranks highly in malware blocking, competing with brands like Bitdefender and Kaspersky. However, users should be cautious of upselling practices and data collection concerns. The free version provides strong protection, while paid plans offer additional features like VPN and advanced ransomware protection. Avast is accessible on various platforms, and pricing fluctuates due to promotions. Users are advised to assess their needs and be mindful of renewal rates before subscribing.

Tech Optimizer

February 25, 2026

Fix “kernel security check failure”: Step-by-step guide

The "kernel security check failure" error on Windows indicates corruption in critical system memory or internal data structures, triggering a bug check to prevent further damage. It is marked by the Blue Screen of Death (BSOD) displaying the message “KERNELSECURITYCHECK_FAILURE” and stop code 0x139. Causes include outdated or incompatible drivers, corrupted system files, faulty RAM, disk errors, third-party software conflicts, faulty Windows updates, overclocking, and malware threats. Common fixes involve updating Windows and drivers, scanning for corrupted files, using Check Disk (CHKDSK), running Windows Memory Diagnostic, and performing System Restore. If unresolved, a clean installation of Windows may be necessary. Regular updates and avoiding unnecessary software installations can help prevent future occurrences.

Tech Optimizer

February 24, 2026

Hackers Are Using Fake Invitations to Take Over Your PC

Cybercriminals are sending counterfeit email invitations that, when clicked, install a backdoor on the victim's computer, allowing hackers full control. The scam often involves downloading a file named “invites.msi,” which is a Windows Installer package. This file can install ScreenConnect, a legitimate remote support tool that can be exploited by attackers to monitor screens, access files, and deploy additional malware. Many security engines fail to flag this software as malicious, making it difficult to detect. If someone suspects they have fallen victim to this scam, they should disconnect from the internet, check for and uninstall any remote management software, run a comprehensive antivirus scan, change passwords for critical accounts, enable two-factor authentication, inform their IT department if applicable, and consider performing a full Windows reset. The scam originated from a compromised email account, which was used to send the malicious link to contacts. Implementing two-factor authentication and using a password manager can help prevent such incidents. Users should be cautious of any email invitations that require downloading and running installer files.

Tech Optimizer

February 19, 2026

How to Install McAfee Antivirus on Windows 11 or 10

Installing third-party antivirus software like McAfee on Windows 11 can be challenging due to the built-in Windows Security, which can complicate the installation process. Users may face issues such as silent failures from conflicting software, permission problems on restricted machines, or restrictions due to S Mode on new laptops. Windows 11 includes Windows Security, which is effective for malware protection, but McAfee may be necessary for compliance, additional features, or centralized protection for multiple devices. McAfee supports Windows 11 Home, Pro, and Education editions but not Enterprise. The minimum hardware requirements include a processor of 1 GHz or faster, at least 2 GB of RAM (4 GB recommended), 1.3 GB of free disk space, an internet connection for download and updates, and a display resolution of at least 1024×768. McAfee requires a persistent internet connection for activation and updates. Before installing McAfee, users should check if their device is in S Mode, as McAfee cannot be installed in this mode. They must remove any existing antivirus software completely, as leftover files can interfere with the installation. Users should also ensure that Windows 11 is up to date and verify that there is enough disk space available. To download McAfee, users should go directly to the McAfee trial page to avoid scams. After downloading, they need to run the installer and restart their computer after installation. Users should then activate McAfee, run a manual update, and conduct a full system scan. Common installation problems include freezes during download, errors due to S Mode, and issues with Windows Security not recognizing McAfee as the active antivirus. Users can verify that McAfee is functioning correctly by checking the system tray icon, Windows Security settings, and the McAfee dashboard. To uninstall McAfee, users should go to Settings > Apps > Installed Apps, select McAfee, and follow the prompts to remove it. After uninstallation, Windows Security will reactivate automatically. McAfee offers several plans for Windows users, including Basic, Essential, Premium, and Advanced, each with different features and device limits. The Basic plan is suitable for single-device users without additional needs, while families may benefit from the Essential or Premium plans.

Winsage

February 18, 2026

Releasing Windows 11 Builds 26100.7918 and 26200.7918 to the Release Preview Channel

Windows 11 Builds 26100.7918 and 26200.7918 (KB5077241) have been released for Insiders in the Release Preview Channel, covering versions 24H2 and 25H2. The update features a gradual rollout method for updates and includes various new features and enhancements: - Emoji 16.0 introduces a selection of new emojis. - Windows Backup for Organizations now includes a first sign-in restore experience. - Quick Machine Recovery (QMR) is activated for non-domain joined Windows Professional devices. - A built-in network speed test is accessible from the taskbar. - Taskbar improvements enhance the visual experience of the overflow area. - A new entry point in the account menu directs users to the Microsoft account benefits page. - Windows supports Microsoft Entra ID group and role SID resolution. - Users can control pan and tilt for supported cameras in the Settings app. - Sysmon functionality is now included natively in Windows for capturing system events. - Widget Settings now opens as a full-page experience in the Widgets app. - Users can set .webp image files as their desktop background. - The search process icon in Task Manager has been updated. - Storage Settings dialogs have been modernized, and performance for scanning temporary files has improved. - Enhancements have been made to Windows Update Settings for better responsiveness. - Reliability improvements have been implemented for the login screen and Nearby Sharing. - The Windows print service has been optimized for smoother performance during high-volume tasks. - File Explorer has received several improvements, including an extract all option for non-ZIP archive folders and enhanced reliability for displaying devices on the Network page. - Performance enhancements have been made to reduce resume-from-sleep time on heavily loaded systems. - Minor visual issues related to the taskbar, Windows Security pop-up credential fields, and the print dialog have been addressed.

Winsage

February 16, 2026

Windows 11 KB5077181 fixes boot failures linked to failed updates

Microsoft resolved a critical bug affecting some commercial systems running Windows 11 that caused boot failures due to an "UNMOUNTABLEBOOTVOLUME" error. This issue was linked to problematic updates from December 2025 and primarily impacted devices on Windows 11 versions 25H2 and 24H2. The resolution was included in the February 2026 Patch Tuesday update, specifically the Windows 11 KB5077181 security update released on February 10, 2026. An initial fix was provided in the optional update KB5074105 on January 29, 2026. Affected devices experienced failures after installing the January 13, 2026, security update KB5074109. Microsoft recommends that enterprise customers with still unbootable systems contact Microsoft Support for Business for assistance.

Tech Optimizer

February 16, 2026

How to Uninstall McAfee on Windows 11 (3 Methods Including winget)

To uninstall McAfee on Windows 11, go to Settings → Apps → Installed apps, find McAfee, and select Uninstall. Alternatively, use the command winget uninstall --id "McAfee.TotalProtection" in an elevated terminal. After uninstalling, run McAfee’s MCPR removal tool to remove any leftover files and registry entries. Windows Security (Defender) will automatically activate after McAfee is removed. McAfee is often preinstalled on Windows 11 laptops by manufacturers like Dell, HP, Lenovo, and ASUS. It is recommended to create a system restore point before uninstalling and ensure you have administrative rights. After uninstalling, check for any remaining McAfee entries in installed apps, running services, Task Manager processes, leftover folders, and scheduled tasks. If issues arise during uninstallation, booting into Safe Mode or using the MCPR tool can help. Windows Security is a built-in antivirus that activates automatically after McAfee removal, providing protection.

Winsage

February 13, 2026

Microsoft Introduces New Secure Boot Certificates Before June Deadline

The foundational security certificates supporting Windows Secure Boot, introduced in 2011, will expire in mid-2026, specifically in June and October. Microsoft and PC manufacturers are updating the Windows ecosystem to address this. Devices that do not receive updated certificates may face security limitations and compatibility issues with newer operating systems and hardware. The transition is described as a "generational refresh" of the trust infrastructure for Windows. Systems failing to update will still function but may enter a "degraded security state," unable to install new security mitigations or newer operating systems. Most users will receive updates automatically through Windows Update, while older systems may require manual intervention. Systems at risk include those running unsupported Windows versions, with Secure Boot disabled, or not enrolled in Extended Security Updates. Users should check their Secure Boot status using PowerShell commands to ensure they are using the new certificates. The update affects not only Windows PCs but also other devices utilizing UEFI Secure Boot.

Winsage

February 11, 2026

Refreshing the root of trust: industry collaboration on Secure Boot certificate updates

Secure Boot is a security feature in Windows and Windows Server that protects devices from untrusted software at startup. It has been in operation since 2011 and relies on certificates embedded in a PC’s firmware. The original Secure Boot certificates will begin to expire in late June 2026. New certificates are being rolled out through regular Windows updates for supported devices, with OEMs preparing new devices with updated certificates since 2024. If devices do not receive the new certificates before the expiration of the old ones, they will continue to function but will enter a degraded security state, limiting future protections. Users generally do not need to take action, as updates will be installed automatically, but some specialized systems may require separate firmware updates. Organizations can monitor the update status through the Windows Security App and should ensure devices are running the latest updates and firmware. Support is available for individuals and organizations facing issues during the update process.