What are the reasons for the error "is not a Win32 application" and how to fix it

This error appears when you try to run an installed application or installer. This can happen even with a program that you already used and everything was in order. Further we will tell what can be done in a similar situation.

Ways to eliminate the error "Not a Win32 application."

Causes of the message "Not a Win32 Application"

The error appears because the system as a result of some kind of failure suddenly decides that the program being launched is “not a win32 application”, i.e. it does not fit the 32-bit computer. This is true for any Windows XP to 10. If you are sure that the error carries the wrong information and the software is actually suitable for 32-bit Windows, then something happened to the system. Here is a list of possible reasons:

the computer worked for a long time without a break, resource-intensive programs were started, multiple files were downloaded, and so on;

  • the program distribution itself contains an error: there are not enough elements in it or a virus is injected - this often happens with pirated versions of popular applications;
  • the virus “settled” in the system itself and damaged important entries in the registry, violating the order of launching files;

    the antivirus blocked the program, detected something suspicious in it, and placed some of the items in quarantine, and the system lost access to them;

  • Windows lacks tools for working with the application - some require downloading libraries, plug-ins, components for reading codes written in an object-oriented programming language;
  • if the program is launched from a disk, then it may be damaged: take a closer look at its appearance, whether there are scratches, “nodules” of the material on the shiny surface or some other defects;
  • unlicensed Windows can contain a number of different bugs, have broken tools, closed libraries for access, etc.

How to fix the error

  1. If you see the error "Not a win32 application", you can do something to correct the situation:

    Reboot the computer first. Probably, many hours of uninterrupted PC operation had a bad effect on its functioning, and the processes stopped running as they should or lost contact with the hardware center.

  2. Once again, read and correlate the requirements of the application to the OS: is it really created for Windows or did you download the version intended for Linux or Mac? Look at the width of your system and distribution, as well as the extension of the latter: if the installation file is not in the .exe format, then it is definitely not suitable for running on Windows, even if the description indicates the opposite. Often this is suggested on sites where they seek to deceive visitors and inject some virus into their system.

  3. If you are well versed in programs, then look at the components of the distribution: whether all files are in place. Try to download the installer from another site.
  4. Check your computer with antivirus: perhaps some pest has got into the system that has violated the order of the processes. This is especially likely if a number of others arise in addition to the error in question.
  5. Now on the contrary, try disabling the antivirus to make sure that it is not he who blocked the launch of the program. Sometimes this happens, especially if the alert mode is selected in the settings. Add a program to the list of exceptions or turn off the service every time you use problematic software.
  6. It may be useful to try to launch the program as an administrator: click the shortcut with an additional button and select Run As Administrator.
  7. You can adjust the compatibility parameters: click on the program's shortcut with an additional manipulator button and select Properties and then the Compatibility section. In the drop-down list, select an older OS modification, and then try to start the application — perhaps your version of Windows was too new for it.

  8. If the error "The program is not a win32 application" has not disappeared anywhere, it's time to check that everything is fine with the registry. Press Win + R and enter into the line: “regedit” (without quotes), click “Enter”. Find the large HKEY_LOCAL_MACHINE section on the right, SOFTWARE in it, and then open the following folders in sequence: Classes \ exefile \ shell \ open \ command. There will be two files with the value “% 1”% * (quotes, percent icon, unit, quotes, percent, asterisk). If something else is attributed, you need to remove and write exactly that. To change the caption, double click on the file name.
  9. Open Command line and run Run As Administrator. In the black field, enter the command: CHKDSK / F + “Enter” and wait until the end of the check of the system elements: upon completion you will receive a notification.
  10. Go to the Microsoft website and download the add-ons: Microsoft NET Framework and Microsoft Visual C ++ - some applications do not work without them. Just do not use questionable resources when searching for these files, their behavior in the system is unpredictable.