What Does Write Error Mean?

A write error is generated when the write operation to a disk or storage medium does not complete successfully owing to several factors such as the storage medium being write-protected, not enough space or the sectors being written to being corrupt or damaged. The type of write error message returned during a failed write operation depends on the cause of the error, which makes it easier to diagnose and fix the problem.

Techopedia Explains Write Error

Write errors occur owing to various reasons, and the error message returned corresponds to the cause of this error. In rudimentary operating systems, when a write operation is called, there is no primary checking done on the parameters passed and the process is just done immediately, so these types of error messages are important to let the user know what error has prevented the operation from completing.