13 Windows error fixes, organized by symptom.

0x80070643

Update Install Failed

Fix for 0x80070643 Windows Update Install Failure

KMODE_EXCEPTION_NOT_HANDLED

Kernel Mode Exception

Fix for KMODE_EXCEPTION_NOT_HANDLED on Windows 10/11

MEMORY_MANAGEMENT

Memory Management

Fix for MEMORY_MANAGEMENT BSOD on Windows 10/11

DRIVER_IRQL_NOT_LESS_OR_EQUAL

Driver IRQL Error

Fix for DRIVER_IRQL_NOT_LESS_OR_EQUAL Stop Code

CRITICAL_PROCESS_DIED

Critical Process Died

Fix for CRITICAL_PROCESS_DIED on Windows 10/11

Invalid IP Configuration

Fix "Wi-Fi doesn't have a valid IP configuration" on Windows

USB Not Recognized

Fix "USB Device Not Recognized" Error on Windows 10/11

No Sound

Fix for No Sound on Windows 10/11 — 6 Real Fixes

0x80070005

Access Denied

Fix for 0x80070005 "Access Denied" Error on Windows 10/11

Blue Screen of Death

Fix for Blue Screen of Death (BSOD) on Windows 10/11

PC Running Slow

Why Is My PC So Slow? 8 Real Fixes That Work in 2026

100% CPU Usage

Fix for 100% CPU Usage on Windows 10/11

Printer Offline

Fix for "Printer Offline" Error on Windows 10/11