Windows runtime errors

Before following the below recommendations for troubleshooting your runtime error if you're getting a runtime error with a runtime error code and error message such as "Runtime error 75 path/file access error", skip to the below runtime error listing for a listing of runtime error codes and additional information and causes for these errors.

Windows Runtime error

Confliction with TSR or other running program

If you are encountering a runtime error message while in Windows or above ensure that the issue is not being caused by a third-party program or TSR by end tasking all open programs.

If, after end tasking all TSRs, you continue to experience the same issue and are running Windows 95 or Windows 98, verify that no utility or program is being loaded in the autoexec.bat and config.sys that is causing your issue by temporally renaming the files. To do this, follow the instructions below.

  1. Boot to a MS-DOS prompt.
  2. Once at the MS-DOS prompt, type:

    cd\ <press enter>
    ren autoexec.bat autoexec.ch <press enter>
    ren config.sys config.ch <press enter>

    Once completed, reboot the computer.

Software issue

If your issue persists the program, utility, or game causing the runtime error may have issues. Verify through the developer's website that all updates or patches that may be available have been downloaded and applied.

If no patches or updates are available, uninstall, and reinstall the program that is causing the issue. If you are having a runtime error in your operating system, reinstall the operating system.

Add-on, plug-in, or other extra software

Many runtime errors are also caused by other add-ons, plug-ins, or other extra software that has been installed onto the computer and is associated with the program generating the error. If you have any extra software installed that is associated with the program generating the error make sure there are no available updates for the programs and try uninstalling each of them to verify they're not the cause of your issue.

Computer virus

Because computer viruses and malware can tamper with the system settings or memory it can cause a runtime error. If you are currently running a virus protection program on your computer ensure it has the latest updated patch or .dat file.

If you do not have a computer virus protection program it is recommended one be purchased or that a demo be temporarily downloaded to scan your computer hard drive for viruses.

Memory issue

Finally, if you have followed all of the above recommendations and are still getting runtime errors, you may be encountering a hardware or memory related issue. We recommend that you first contact the developer of the program causing the issue for any possible solutions. If no solutions are found, we recommend you contact the computer or motherboard manufacturer for additional recommendations or service.

Runtime error listings

Below is a listing of Microsoft Windows and Windows software runtime error codes and related Runtime error messages. If you're encountering one of the below runtime error codes and have a matching runtime error message see the associated additional information column for causes and information about that runtime.

Code Runtime error Additional information
5 Illegal function call Program error, verify the program has all the latest updates. If updated try reinstalling the program. If you continue to have the same errors contact the software developer.
6 Overflow Program error, verify the program has all the latest updates. If updated try reinstalling the program. If you continue to have the same errors contact the software developer.
7 Out of memory This issue can be caused when the computer does not meet the programs system requirements or to much memory is already being used for the program to run. If your computer meets the requirements try first reinstalling the program to make sure it's not an issues with the program installation. If this does not resolve your issue see out of memory troubleshooting steps.
9 Subscript out of range Program error, verify the program has all the latest updates. If updated try reinstalling the program. If you continue to have the same errors contact the software developer.
10 Duplicate definition Program error, verify the program has all the latest updates. If updated try reinstalling the program. If you continue to have the same errors contact the software developer.
11 Division by zero Problem with a math formula in the program or the programs code. Verify no software updates are available for the program causing this error.
13 Type Mismatch Make sure your system regional settings are setup correctly and that the program you're running is made for your version of Windows.
14 Out of string space Program error, verify the program has all the latest updates. If updated try reinstalling the program. If you continue to have the same errors contact the software developer.
19 No Resume Program error, verify the program has all the latest updates. If updated try reinstalling the program. If you continue to have the same errors contact the software developer.
20 Resume without error Program error, verify the program has all the latest updates. If updated try reinstalling the program. If you continue to have the same errors contact the software developer.
28 Out of stack space This issue can be caused by a program or memory error. First try going through the out of memory troubleshooting steps.
35 Sub or Function not defined Program error, verify the program has all the latest updates. If updated try reinstalling the program. If you continue to have the same errors contact the software developer.
48 Error in loading DLL This issue is often caused with a bad installation or an issue caused after another program has been installed that replaced the programs DLL. Close all programs and TSRs and try installing the program again.
52 Bad file name or number Program error, verify the program has all the latest updates. If updated try reinstalling the program. If you continue to have the same errors contact the software developer.
53 File not found File required by the program to run is not found. Program needs to be reinstalled or missing file(s) need to be copied back to the computer.
54 Bad file mode Program error, verify the program has all the latest updates. If updated try reinstalling the program. If you continue to have the same errors contact the software developer.
55 File already open Program or file associated with program is being used and program does not have access to use it. Try closing all open and background programs and run program again.
58 File already exists Program error, verify the program has all the latest updates. If updated try reinstalling the program. If you continue to have the same errors contact the software developer.
61 Disk full The disk, for example, the hard drive does not have enough space for the program to run or for associated files to be copied to. Free up disk space on the computer hard drive.
62 Input past end of file Program error, verify the program has all the latest updates. If updated try reinstalling the program. If you continue to have the same errors contact the software developer.
63 Bad record number Program error, verify the program has all the latest updates. If updated try reinstalling the program. If you continue to have the same errors contact the software developer.
64 Bad file name Program error, verify the program has all the latest updates. If updated try reinstalling the program. If you continue to have the same errors contact the software developer.
68 Device unavailable A hardware device or necessary requirement for the program is not being found. Verify all hardware and software required by the program is installed. If you continue to have the same issues verify the latest updates are installed for the program as well as any hardware device the program needs.
70 Permission denied The location of where the program is being copied to does not have proper rights. Or a file that is trying to be copied over because it's currently being used. Try closing all programs and TSRs and running/installing the program again.
71 Disk not ready Verify you have proper rights to the location you are attempting to install the program to.
74 Can't rename with different drive Program error, verify the program has all the latest updates. If updated try reinstalling the program. If you continue to have the same errors contact the software developer.
75 Path/File access error Program does not have rights or access to a file. Often this is caused when a program is trying to access a network file it doesn't have proper access to either because of network privileges or something is blocking the program. This issue can also be caused when the file is being used by another program or is read-only.
76 Path not found Directory of where the program needs to be copied to or files associated with the program need to be copied to is missing. Try reinstalling the program.
91 Object variable set to Nothing Program error, verify the program has all the latest updates. If updated try reinstalling the program. If you continue to have the same errors contact the software developer.
93 Invalid pattern Program error, verify the program has all the latest updates. If updated try reinstalling the program. If you continue to have the same errors contact the software developer.
94 Illegal use of NULL Program error, verify the program has all the latest updates. If updated try reinstalling the program. If you continue to have the same errors contact the software developer.
102 Command failed Program error, verify the program has all the latest updates. If updated try reinstalling the program. If you continue to have the same errors contact the software developer.
339 A file is missing or invalid An associated program file is missing or corrupt. Try reinstalling the program.
429 Object creation failed Program is corrupted, try reinstalling the program generating the runtime error.
438 No such property or method Program error, verify the program has all the latest updates. If updated try reinstalling the program. If you continue to have the same errors contact the software developer.
439 Argument type mismatch Program error, verify the program has all the latest updates. If updated try reinstalling the program. If you continue to have the same errors contact the software developer.
440 Object error Program error, verify the program has all the latest updates. If updated try reinstalling the program. If you continue to have the same errors contact the software developer.
901 Input buffer would be larger than 64K Program error, verify the program has all the latest updates. If updated try reinstalling the program. If you continue to have the same errors contact the software developer.
902 Operating system error Verify the program is compatible with your version of Windows and has any software updates.
903 External procedure not found Program error, verify the program has all the latest updates. If updated try reinstalling the program. If you continue to have the same errors contact the software developer.
904 Global variable type mismatch Program error, verify the program has all the latest updates. If updated try reinstalling the program. If you continue to have the same errors contact the software developer.
905 User-defined type mismatch A setting either in the program shortcut or being defined by the user is correct. Try running just the program without any additional settings or variables.
906 External procedure interface mismatch Program error, verify the program has all the latest updates. If updated try reinstalling the program. If you continue to have the same errors contact the software developer.
1001 Out of memory This issue can be caused when the computer does not meet the programs system requirements or to much memory is already being used for the program to run.

If your computer meets the requirements try first reinstalling the program to make sure it's not an issue with the program installation. If this does not resolve your issue run through the out of memory troubleshooting steps.

1025 DLL is not supported This issue is often caused with a bad installation or an issue caused after another program has been installed that replaced the programs DLL. Close all programs and TSRs and try installing the program again.
6025 Microsoft Windows r6025 runtime error.

Additional information

  • See the runtime error definition for further information and related terms.