When an error occurs in Windows or other software programs, an error code is generated and sometimes displayed to the computer user. The error code is a specific number that identifies what the error is to the system. It also can be helpful in finding a resolution to the problem.
If you're getting an error code, search for the error code number and where you're getting the error to find a resolution. For example, in the Windows Device Manager, looking up error code 43 indicates that the hardware device has failed and should be replaced.