# ErrorFixer

> ErrorFixer is a comprehensive, open-access PC hardware and software error diagnostic repository. It contains 395+ individual error code pages with detailed, step-by-step repair guides, causes, diagnostic commands, and severity ratings. The site covers Windows BSODs, GPU crashes, CPU overheating, DirectX API failures, BIOS/UEFI startup errors, RAM faults, SSD/HDD failures, PSU issues, driver problems, and more.

## Site Structure
- **Homepage**: https://errorsfixer.com/ – Main search engine with fuzzy search, category filters, error table with pagination, interactive diagnostic troubleshooter, and live Windows Update alert tracker.
- **Error Pages**: https://errorsfixer.com/error/{ERROR-CODE}/ – Individual pages (395+) for each error, each containing: description, causes, recommended solutions, diagnostic commands, severity badge, FAQ, E-E-A-T metadata.
- **Guides**: https://errorsfixer.com/guides/{GUIDE-SLUG}/ – 13 comprehensive multi-section diagnostic guides.
- **About**: https://errorsfixer.com/about.html – E-E-A-T information about the site's mission and verification process.
- **Contact**: https://errorsfixer.com/contact.html – Contact form for reporting missing errors or requesting help.
- **Privacy Policy**: https://errorsfixer.com/privacy-policy.html
- **Sitemap (XML)**: https://errorsfixer.com/sitemap.xml
- **Sitemap (HTML)**: https://errorsfixer.com/sitemap.html

## Core Resources
- [ErrorFixer Homepage](https://errorsfixer.com/) – The main dynamic troubleshooting search engine and interactive error database.
- [XML Sitemap](https://errorsfixer.com/sitemap.xml) – Complete XML list of all indexable error codes, guides, and diagnostic pages.
- [HTML Sitemap](https://errorsfixer.com/sitemap.html) – Human-readable index of all 395+ error pages organized alphabetically.

## Diagnostic & Troubleshooting Guides
Comprehensive, step-by-step guides covering major areas of PC assembly, hardware stability, and software troubleshooting:

- [PC Build Guide](https://errorsfixer.com/guides/pc-build-guide/) – How to avoid common computer assembly mistakes, diagnose motherboard POST codes, and set up your BIOS correctly.
- [CPU Overheating](https://errorsfixer.com/guides/cpu-overheating/) – Diagnosing high processor temperatures, optimizing PC case cooling airflow, and applying/replacing thermal paste.
- [GPU Crash in Games](https://errorsfixer.com/guides/gpu-crash-gaming/) – Troubleshooting graphics card black screens, driver Timeout Detection and Recovery (TDR) crashes (`nvlddmkm.sys`), and Crash to Desktop (CTD) events in modern games.
- [DirectX Errors](https://errorsfixer.com/guides/directx-errors/) – Resolving `DXGI_ERROR_DEVICE_HUNG`, `DXGI_ERROR_DEVICE_REMOVED`, missing DirectX DLL files, and graphics API crashes.
- [BIOS Startup Errors](https://errorsfixer.com/guides/bios-startup-errors/) – Fixing CMOS checksum errors, motherboard boot loops, UEFI boot order conflicts, Secure Boot violations, and TPM/AGESA issues.
- [Common BSOD Codes](https://errorsfixer.com/guides/bsod-codes/) – Step-by-step repair instructions for Windows Blue Screen of Death stop codes, driver crashes, and kernel security failures.
- [Windows Error Codes](https://errorsfixer.com/guides/windows-error-codes/) – Troubleshooting failed Windows Updates, permission errors (`0x80070005`), corrupt system files (`sfc /scannow`), and service crashes.
- [Diagnostic Tools](https://errorsfixer.com/guides/pc-diagnostics-tools/) – A curated directory of the best free software tools to stress-test your CPU, monitor temperature sensors, verify RAM integrity, and check SSD/HDD health.
- [RAM Troubleshooting](https://errorsfixer.com/guides/ram-troubleshooting/) – Diagnosing memory errors with MemTest86, XMP/EXPO instability, dual-channel configuration issues.
- [SSD & HDD Diagnostics](https://errorsfixer.com/guides/ssd-hdd-diagnostics/) – S.M.A.R.T. status interpretation, NVMe health checks, TRIM alignment, and data recovery options.
- [Windows Update Fix](https://errorsfixer.com/guides/windows-update-fix/) – Fixing stuck Windows Update, 0x80070643, 0x800F0922, and SoftwareDistribution cache corruption.
- [PSU Troubleshooting](https://errorsfixer.com/guides/psu-troubleshooting/) – Diagnosing power supply failures, OCP/OVP/UVP trips, 12VHPWR connector safety, and ripple noise.

## Notable Error Pages
These are among the most commonly searched errors on the site:
- [WHEA_UNCORRECTABLE_ERROR](https://errorsfixer.com/error/WHEA-UNCORRECTABLE-ERROR/) – Critical BSOD 0x124 caused by CPU/chipset hardware fault, voltage instability, or overclocking.
- [Code 43 GPU](https://errorsfixer.com/error/CODE-43-GPU/) – Windows stopped the graphics card; fix via DDU driver reinstall.
- [nvlddmkm.sys](https://errorsfixer.com/error/nvlddmkm.sys/) – NVIDIA kernel driver TDR crash; fix using DDU in Safe Mode.
- [MEMORY_MANAGEMENT](https://errorsfixer.com/error/MEMORY-MANAGEMENT/) – Critical RAM BSOD; fix using MemTest86 and driver updates.
- [IRQL_NOT_LESS_OR_EQUAL](https://errorsfixer.com/error/0x0000000A/) – Kernel IRQL memory access violation; fix using driver updates and mdsched.
- [DPC_WATCHDOG_VIOLATION](https://errorsfixer.com/error/DPC-WATCHDOG-VIOLATION/) – Timeout in deferred procedure call; caused by SSD firmware or driver conflicts.
- [INACCESSIBLE_BOOT_DEVICE](https://errorsfixer.com/error/INACCESSIBLE_BOOT_DEVICE/) – Windows bootloader missing; fix using bootrec /rebuildbcd.

## Technical Categories
The database covers individual issues organized across the following core hardware and software categories:

### Hardware Components
- **Processor (CPU)** – Thermal throttling, voltage drops, cache parity exceptions, PROCHOT signals, and clock speed instability.
- **Graphics Card (GPU)** – Hardware Code 43, VRAM corruption, fan failures, power limit throttling, and PCIe bandwidth bottlenecks.
- **Memory (RAM)** – XMP boot loops, MemTest86 errors, ECC memory failures, and row hammer detections.
- **Storage (SSD/HDD)** – S.M.A.R.T reallocated sectors, NTFS file system degradation, TRIM alignment problems, and NVMe controller resets.
- **Motherboard** – VRM overheating, PCIe lane drops, PCH thermal issues, and battery voltage leaks.
- **Power Supply (PSU)** – Overvoltage (OVP), overcurrent (OCP), undervoltage (UVP) triggers, extreme ripple noise, and 12VHPWR cable safety.
- **BIOS / UEFI** – Boot order conflicts, Secure Boot violations, CMOS checksum errors, TPM issues, and AGESA failures.
- **Network / NIC** – DNS resolution failures, Winsock corruption, SMB signing mismatches, and WiFi driver crashes.

### Software & API Layers
- **Windows / BSOD** – Stop codes including `WHEA_UNCORRECTABLE_ERROR`, `DPC_WATCHDOG_VIOLATION`, `KERNEL_SECURITY_CHECK_FAILURE`, and `INACCESSIBLE_BOOT_DEVICE`.
- **System Drivers** – Safe Mode troubleshooting, Clean driver uninstalls with Display Driver Uninstaller (DDU), driver power state issues, and USB controller failures.
- **Graphics APIs** – Vulkan out-of-date exceptions, Vulkan validation layers, OpenGL invalid operations, and shader compilation conflicts.
- **DirectX / DXGI** – DXGI_ERROR_DEVICE_REMOVED, DXGI_ERROR_DEVICE_HUNG, DXGI_ERROR_DRIVER_INTERNAL_ERROR, and missing DLL errors.
- **Runtimes & Libraries** – Missing Visual C++ redistributables (`MSVCP140.dll`, `VCRUNTIME140.dll`), DLL hijacking mitigations, and .NET Framework initialization errors.
- **Windows Services** – Service failure codes for Spooler, BITS, CryptSvc, Audiosrv, VSS, wuauserv, TermService, and Winmgmt.

## Data Quality & E-E-A-T
All error pages include:
- Severity ratings (Low / Medium / High / Critical)
- Last updated date and "Verified by ErrorFixer Technical Board" badge
- Structured data: TechArticle, HowTo, BreadcrumbList (JSON-LD)
- Canonical URLs and Open Graph tags
- Diagnostic commands (copy-to-clipboard enabled)
- FAQ section with common follow-up questions