Windows Win32 Error 0x0000021D – ERROR_TIMER_NOT_CANCELED

In this post, you’ll learn about the Win32 Error “0x0000021D – ERROR_TIMER_NOT_CANCELED” that you get when debugging system erors in Windows.

The System Error Codes in Windows is a standard computer errors that occurs on Windows PCs. The System Error are usually intended for the developers troubleshooting issues related to the messages returned by the GetLastError.

Most of these Windows Errors are defined in the WinError.h file. The description of these error codes are very general and requires some bit of analysis to understand the exact issue.

Error Message


Error Description

An attempt was made to cancel or set a timer that has an associated asynchronous procedure call (APC) and the subject thread is not the thread that originally set the timer with an associated APC routine.