Windows & PC

Expert technical solutions for Windows OS settings, system errors, and PC performance tuning.

How to Re-Register Defender After an Antivirus Uninstall Left a Residue

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Quick fix: Third-party antivirus uninstall sometimes leaves driver and registry remnants that prevent Defender from taking over. Run the vendor’s official cleanup tool (Norton Removal Tool, McAfee MCPR, Avast Removal Utility), then in elevated PowerShell: Set-MpPreference -DisableRealtimeMonitoring $false and reboot. You uninstalled Norton, McAfee, Kaspersky, or another third-party antivirus. Microsoft Defender should have automatically resumed … Read more

How to Make a Recovery USB That Includes Your OEM Drivers on Windows 11

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Quick fix: Use the OEM’s built-in recovery USB creator (HP Recovery Manager, Lenovo OneKey Recovery, Dell SupportAssist OS Recovery) which includes manufacturer drivers and tools. For generic Windows 11 install USBs, slipstream OEM drivers via dism /image:<mount> /add-driver /driver:<path> /recurse. You make a Windows 11 install USB via the Media Creation Tool. It works for … Read more

Fix Display Resolution Resets to 1024×768 After Windows 11 Sleep

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Quick fix: Display resolution resetting to 1024×768 after sleep means: graphics driver failed to detect monitor properly. Update GPU driver from manufacturer (Nvidia, AMD, Intel). For Nvidia: install Studio driver (more stable than Game Ready). Disable adapter sleep: Device Manager → Display adapters → right-click GPU → Properties → Power Management → untick “Allow the … Read more

How to Persist a Multi-Monitor Layout for Every Account on Windows 11

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Quick fix: Display arrangement saves per-user under HKCU\Software\Microsoft\Windows\CurrentVersion\Display. Export this key on a configured account, import for each new user (or via Group Policy Preferences). For shared workstations, set the layout for the .DEFAULT user profile so new sign-ins inherit it. You arrange three monitors in a specific physical layout. Sign in — layout is … Read more

Why CoreWindow.exe Leaks Memory After Long Display Sleep on Windows 11

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Quick fix: CoreWindow.exe handles UWP app windows. Long display sleep periods can leave its working set holding references to objects that should be released. Restart Explorer (which also restarts CoreWindow) via Task Manager, or call (Get-Process -Name CoreWindow).Refresh() in PowerShell to trigger garbage collection. You leave the PC running but with display off for several … Read more

Fix Audio Service Crashes When Switching Between Wired and Wireless Outputs

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Quick fix: Audio service crashes during endpoint switches usually point to a buggy audio driver enumeration. Restart the audio services: Restart-Service Audiosrv, AudioEndpointBuilder in elevated PowerShell. For chronic crashes, update or roll back the audio driver. You switch between wired headphones and Bluetooth speakers. The first time works. The second time, audio stops working entirely. … Read more

Why Firewall Allows Outbound After a Specific App Updates Itself

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Quick fix: Some apps create their own Windows Firewall rules during update, including overly-broad outbound allow. Audit existing rules: Get-NetFirewallRule | Where-Object Direction -eq Outbound | Where-Object Action -eq Allow. Delete rules created by the app: Remove-NetFirewallRule -DisplayName “Suspicious Rule”. You configured strict outbound firewall rules. After updating a specific app, outbound traffic for that … Read more

Why DiskPart clean Fails on a USB Stick With Active Write Protection

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Quick fix: diskpart’s clean fails on write-protected USB sticks because the protection is at the hardware level. Check for a physical write-protect switch on the USB stick. If none, the protection is firmware-level — use the manufacturer’s low-level format utility or accept that the stick is dead. You insert a USB stick. Try to write … Read more

Fix Display Resolution Resets to 1024×768 After Windows 11 Sleep

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Quick fix: Display resolution resetting to 1024×768 after sleep means: graphics driver failed to detect monitor properly. Update GPU driver from manufacturer (Nvidia, AMD, Intel). For Nvidia: install Studio driver (more stable than Game Ready). Disable adapter sleep: Device Manager → Display adapters → right-click GPU → Properties → Power Management → untick “Allow the … Read more

Why Print Notifications Pop Up From Microsoft Print to PDF Unexpectedly

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Quick fix: Print notifications come from the Print Spooler service. Disable them per-app for Microsoft Print to PDF: Settings → System → Notifications, find Print Notifications, toggle off. For global suppression: HKCU\Software\Microsoft\Windows\CurrentVersion\Print set EnablePrintNotifications = 0. You print to PDF. A notification pops up: “Microsoft Print to PDF — Printed.” It happens every time, often … Read more