Windows Error Codes & Troubleshooting Directory
Microsoft Windows is the most widely used PC operating system. Fix common Windows system boot faults, access violations, and broadband dial-up connection errors with our detailed diagnostic manuals. Below you'll find the complete list of common Windows error codes, including meaning, severity ratings, DIY fix success rates, and cost guides.
Common Windows Error Codes
Windows
medium
Windows 0xc0000005
System access violation error, meaning an application attempted to read or write to a protected memory address without permission.
Windows
medium
Windows 651
Broadband connection failure: 'Your modem (or other connecting device) has reported an error.' Indicates a driver or system configuration error.
Frequently Asked Questions
How do I reset a Windows device after getting an error code?
For most Windows devices, a soft reset is done by unplugging the power cord for 60 seconds, holding the power button for 15 seconds to discharge internal capacitors, and plugging it back in. For boilers and HVAC units, locate the dedicated reset button or switch off the circuit breaker for 10 minutes.
Are Windows error codes covered under manufacturer warranty?
If your Windows device is under its warranty period, hardware errors (like printhead circuit issues, motor seizures, or PCB failures) are typically covered. Software issues, network configurations, or user-serviceable jams are usually excluded.
Should I hire a professional technician to fix my Windows device?
It depends on the error severity. Low and medium severity errors (like software glitches, drainage blockages, or load imbalances) have a 70%+ DIY success rate and cost under $30. High severity errors (like refrigerant leaks, blown heat exchangers, or burned-out control boards) require professional tools and should be handled by certified technicians.