WerFault.exe is the executable responsible for Windows Error Reporting (WER) on Microsoft Windows systems. When an application crashes or encounters a serious error, WerFault.exe is triggered to collect diagnostic data and generate error reports. These reports can be sent to Microsoft for analysis, helping improve system stability and security. While WerFault.exe is a legitimate system process, cybercriminals may disguise malware using similar names. Therefore, it's important to verify the file's location (usually in the System32 folder) if suspicious activity is detected. Disabling WerFault.exe is not recommended, as it helps identify and resolve system issues.