Windows

Fix a visible but frozen Windows 10 taskbar by restarting Explorer, testing a new local profile, running SFC, installing updates, checking misbehaving tray apps, updating graphics drivers, and using PowerShell only as a last resort.

Understand BIOS vs UEFI, GPT vs MBR, Secure Boot, CSM, Windows 11 requirements, and how to check BIOS Mode from Windows.

Fix SYSTEM_SERVICE_EXCEPTION blue screens by matching crashes to graphics, network, or audio drivers, running SFC and DISM, installing or uninstalling updates, reading minidumps, testing antivirus and RAM, and resetting Windows if needed.

Restore a missing Windows taskbar by disabling auto-hide, restarting Explorer, checking monitors and full-screen apps, updating graphics drivers, testing profiles, and running SFC.

Fix no sound on Windows by checking mute, output devices, the audio troubleshooter, drivers, Windows Audio service, sample rate, cables, HDMI output, and recent updates.

Fix a frozen Windows 10 Start menu by restarting Explorer, running Windows Update troubleshooter, re-registering ShellExperienceHost, testing a new user profile, and running SFC.

Fix Secure Boot Violation errors by resetting Secure Boot keys, confirming UEFI boot mode, checking boot order, running Startup Repair, and handling dual-boot edge cases.

Decide whether to upgrade from Windows 10 to Windows 11 by checking eligibility, support timelines, security requirements, app compatibility, backups, and upgrade steps.

Look up common Windows blue screen stop codes, understand their likely causes, and choose the right next troubleshooting step.

Fix PAGE_FAULT_IN_NONPAGED_AREA on Windows by checking named drivers, testing RAM, running CHKDSK, repairing system files, reading minidumps, checking heat, and resetting as a last resort.