What does Windows error code 33 (ERROR_LOCK_VIOLATION) mean? Status / error code: Category: Constant name: Source: Operating System: Description: The process cannot access the file because another process has locked a portion of the file. Could be also: ConstantTypeOS KERN_INVALID_LEDGERKern returnMac ippStsDstSizeLessExpectedIntel Ipp StatusAny EDOMerrnoAny QUOTA_UNDERFLOWBugCheck CodeWindows Looking for a different code? Search another status or error code.