System error codes will appear in software programs and in various areas within the Windows operating system after certain errors occur.
Important: A system error code is not the same as a Device Manager
error code or a browser error code, even though the error numbers may sometimes be the same.
Below is a list of system error codes from Code 600 to Code 699, along with a description of what the error code means.
Looking for system error codes outside of this range? See my
Complete List of System Error Codes for error code details from Code 1 to Code 15299.
Error Code 620
System error code 620 means "The specified Plug and Play registry device path is invalid." This error code may also display as "ERROR_INVALID_PLUGPLAY_DEVICE_PATH" or as the value 0x26C.Error Code 621
System error code 621 means "The specified quota list is internally inconsistent with its descriptor." This error code may also display as "ERROR_QUOTA_LIST_INCONSISTENT" or as the value 0x26D.Error Code 622
System error code 622 means "{Windows Evaluation Notification} The evaluation period for this installation of Windows has expired. This system will shutdown in 1 hour. To restore access to this installation of Windows" This error code may also display as "ERROR_EVALUATION_EXPIRATION" or as the value 0x26E.Error Code 623
System error code 623 means "{Illegal System DLL Relocation} The system DLL %hs was relocated in memory. The application will not run properly. The relocation occurred because the DLL %hs occupied an address range reserved for Windows system DLLs. The vendor supplying the DLL should be contacted for a new DLL." This error code may also display as "ERROR_ILLEGAL_DLL_RELOCATION" or as the value 0x26F.Error Code 624
System error code 624 means "{DLL Initialization Failed} The application failed to initialize because the window station is shutting down." This error code may also display as "ERROR_DLL_INIT_FAILED_LOGOFF" or as the value 0x270.Error Code 625
System error code 625 means "The validation process needs to continue on to the next step." This error code may also display as "ERROR_VALIDATE_CONTINUE" or as the value 0x271.Error Code 626
System error code 626 means "There are no more matches for the current index enumeration." This error code may also display as "ERROR_NO_MORE_MATCHES" or as the value 0x272.Error Code 627
System error code 627 means "The range could not be added to the range list because of a conflict." This error code may also display as "ERROR_RANGE_LIST_CONFLICT" or as the value 0x273.Error Code 628
System error code 628 means "The server process is running under a SID different than that required by client." This error code may also display as "ERROR_SERVER_SID_MISMATCH" or as the value 0x274.Error Code 629
System error code 629 means "A group marked use for deny only cannot be enabled." This error code may also display as "ERROR_CANT_ENABLE_DENY_ONLY" or as the value 0x275.