Tech Repair Blog — Page 4

VPN Not Working on Windows 11 — How to Fix

VPN won't connect on Windows 11? Fix TAP adapter errors, DNS leaks, firewall blocks, and KB5037771 update issues step by step.

WHEA_UNCORRECTABLE_ERROR blue screen? This one means hardware. Check Event Viewer WHEA-Logger, disable XMP, diagnose CPU and PCIe faults.

Computer fan loud? Diagnose fan noise vs coil whine vs hard drive clicking. Software fan curves, dust cleaning, and when to replace hardware.

Windows 11 not activated? Fix error codes 0xC004F074, 0x803F7001, 0xC004C003 with slmgr commands, phone activation, and hardware change recovery.

Can't adjust brightness on Windows 11? Fix missing sliders, broken Fn keys, display drivers, and adaptive brightness settings.

HDMI not working on Windows 11? Fix no signal, black screen, HDCP errors, and GPU driver issues for TVs, monitors, and projectors.

Windows 11 using 90%+ RAM with nothing open? Use RAMMap and poolmon to find the exact driver or process leaking memory. Known leakers and fixes.

Windows 11 search freezing, blank, or not finding files? Fix SearchHost.exe crashes, disable Bing integration, and rebuild the search index.

Windows 11 won't sleep, keeps waking up, or won't wake? Use powercfg to find the exact blocker, fix Modern Standby drain, and stop phantom wakes.

Fix audio crackling, popping, and stuttering on Windows 11. Sample rate mismatch, DPC latency from WiFi/GPU drivers, and audio enhancements.

Windows 11 taskbar frozen, missing, or unclickable? Restart Explorer, fix icon cache, repair after updates. Step-by-step fixes.

Windows 11 disk at 100% in Task Manager? Find the exact process causing it, then fix SysMain, Search, Defender, or drivers. HDD vs SSD explained.