Windows Error Lookup Tool is a handy utility designed to return info about error codes displayed by your system. Windows Error Look up Tool will display a description of windows errors in English with the ability to create a note for that error. Windows Error Look up Tool will work with regular Windows Errors (decimal and hex), signed error numbers and HRESULTS. You can view and modify any notes you have created with the note browser. Windows Error Look up Tool does not work with STOP errors, certain errors from non system modules or NTSTATUS values.