What is the error window?

Windows Error Reporting (WER) (codenamed Watson) is a crash reporting technology introduced by Microsoft with Windows XP and included in later Windows versions and Windows Mobile 5.0 and 6.0. … Solutions are served using Windows Error Reporting Responses. Windows Error Reporting runs as a Windows service.

What is an error in computer?

An error describes any issue that arises unexpectedly that cause a computer to not function properly. Computers can encounter either software errors or hardware errors.