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System File Checker

Why Does Windows Explorer Use So Much Memory?
Winsage
July 28, 2026

Why Does Windows Explorer Use So Much Memory?

A user on Reddit reported that Windows Explorer was using over 21GB of memory, which can cause performance issues on systems with less than 8GB of RAM. One cause of excessive memory consumption is third-party shell extensions, which can be identified by booting into Safe Mode. A tool called ShellExView can help locate problematic extensions. To create a system restore point, users can press Win + R, type systempropertiesprotection.exe, click Create, enter a description, and click Create. Windows Explorer may also retain large caches of temporary data, leading to high memory usage. To clear temporary files, users can press Win + I, navigate to System > Storage > Temporary files, check the relevant boxes, and click Remove files. They can also manually clean the thumbnail and icon cache by deleting specific files in the %localappdata% directory. Corrupted system files can contribute to high memory usage, and users can run DISM and SFC tools to repair these files by accessing the Terminal (admin) and executing the commands DISM.exe /Online /Cleanup-image /Restorehealth and sfc /scannow.
What to do when device settings don't migrate to Windows 11
Winsage
April 17, 2026

What to do when device settings don’t migrate to Windows 11

On October 10, 2025, Microsoft ceased support for Windows 10, ending technical assistance, feature updates, and security updates. Organizations are required to transition to Windows 11. During the migration, IT administrators may face errors indicating that certain device settings were not successfully migrated, which can disrupt user experience. Causes of these errors include outdated or incompatible device drivers, failing physical components, incompatible software, restrictive group policies, missing registry keys, and interference from third-party tools. Affected devices may malfunction, impacting productivity. IT teams can troubleshoot these issues by restarting computers, identifying problematic devices using Device Manager, verifying and updating device drivers, checking physical devices, ensuring the operating environment is up to date, utilizing Microsoft command-line utilities, and performing clean boots or system restores if necessary.
What Is Conhost.exe?
Winsage
March 31, 2026

What Is Conhost.exe?

Conhost.exe, or Console Window Host, is a legitimate Windows system process responsible for managing the display and behavior of console windows such as Command Prompt and PowerShell. It facilitates text rendering and manages input/output interactions with the graphical user interface. Each time a console application is launched, a new instance of conhost.exe is created, and multiple instances can appear in Task Manager based on active console applications. To verify the authenticity of conhost.exe, it should run from C:WindowsSystem32 or C:WindowsSysWOW64, have a valid Microsoft Windows Publisher digital signature, and not make outbound network connections. High CPU usage or unusual behavior may indicate malware masquerading as conhost.exe. Troubleshooting steps for issues related to conhost.exe include running a malware scan, checking for Windows updates, updating device drivers, and using the System File Checker. Disabling conhost.exe is not advisable as it is essential for the functioning of console applications.
silver Android smartphone
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.
Users Solve Windows 11 Issues With Four Settings Checks
Winsage
February 11, 2026

Users Solve Windows 11 Issues With Four Settings Checks

To address slowdowns and glitches in Windows 11, users should verify several settings before considering a complete reinstallation. Key actions include: 1. Check for Windows Updates: Navigate to Settings > Windows Update to install patches and update device drivers. Uninstall problematic updates if necessary. 2. Manage Startup Applications: Use Task Manager (Ctrl+Shift+Esc) or Settings > Apps > Startup to disable unnecessary auto-starting applications to improve boot speed. 3. Pause OneDrive Syncing: Temporarily pause OneDrive syncing during resource-intensive tasks to prevent performance degradation. 4. Adjust Visual Effects: Disable Transparency effects and Animation effects in Settings > Personalization > Colors and Settings > Accessibility > Visual effects, respectively, to reduce GPU strain. 5. Limit Notifications: Turn off notifications in Settings > System > Notifications to minimize interruptions. 6. Restrict Background Activity: Set background app permissions to "Never" for infrequently used applications to conserve memory and disk usage. 7. Run Security Scans: Use Windows Security to perform a Quick scan and ensure that real-time protection features are enabled to detect malware and adware. 8. Browser Maintenance: Reset browser settings, remove unknown extensions, and enable tracking protection to improve resource management. If issues persist, further steps include running System File Checker, testing memory, checking storage health, or performing a repair install of Windows.
How to use DISM command tool to repair Windows 10 image
Winsage
September 17, 2025

How to use DISM command tool to repair Windows 10 image

The Deployment Image Servicing and Management (DISM) tool is a command-line utility in Windows 10 used for preparing, modifying, and repairing system images, including the Windows Recovery Environment, Windows Setup, and Windows PE. It can address various system issues, and when system files are missing or corrupted, the System File Checker (SFC) can replace them using the recovery image. If local image files are compromised, the SFC command may fail, and using the "install.wim" image file with DISM can repair the image, allowing SFC to function without a complete OS reinstallation. DISM includes commands such as "CheckHealth," "ScanHealth," and "RestoreHealth" for repairing system images. The "CheckHealth" command identifies corruptions without repairing them, while "ScanHealth" performs a comprehensive scan for underlying issues. The "RestoreHealth" command scans and repairs common problems, connecting to Windows Update to download and replace damaged files if needed. If DISM encounters difficulties, an "install.wim" or "install.esd" file can be used as an alternative source for repairs. The Media Creation Tool can download a fresh Windows 10 ISO file if necessary. Specific commands can be executed to repair the image using these files, and troubleshooting common errors may involve checking for source file locations or ensuring a stable internet connection. Once the image is restored, the SFC command can be run to repair the installation of Windows 10. The SFC tool checks and repairs system files using local image files, with logs saved for further review. DISM does not delete files, and its execution time can vary based on system speed and the extent of corruption.
Best Windows apps this week
Winsage
May 24, 2025

Best Windows apps this week

Microsoft has open-sourced the Windows Subsystem for Linux to improve Linux integration within the Windows environment. This week, there are various discounts on new applications and games available on the Microsoft Store. Notable new or improved applications include: - Edit: An open-source application from Microsoft, currently available as a standalone tool, designed for 64-bit Windows users with basic functionality and support for multiple file operations. - Everything: A search application that outperforms Windows Search, with the latest version enhancing defenses against DLL hijacking. - Fixyfier: A lightweight utility that provides access to essential repair features for troubleshooting and optimizing Windows systems.
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