A file says no app is associated with it
What does 'this file does not have an app associated with it' mean?
Written by The CommonFixes team · fact checked by CommonFixes review desk
Last updated
Short answer
Windows keeps a list linking each file type to a program. That message means the link is missing or points at a program that has been removed. Broken associations for folders and shortcuts usually come from a bad uninstall or a registry cleaner. The quickest thing to try first: set the program by hand — Right click the file, Open with, Choose another app, pick the correct program and tick 'Always use this app'. If the program is not listed use 'Choose an app on your PC' and browse to its exe file. Most people are done in about 10 minutes.
Full walkthrough below: 6 steps for Windows, rated easy.
Sounds like this
- •The message appears when double clicking a file or shortcut
- •It happens on folders as well as documents
- •Open with shows almost nothing
Why it happens
Windows keeps a list linking each file type to a program. That message means the link is missing or points at a program that has been removed. Broken associations for folders and shortcuts usually come from a bad uninstall or a registry cleaner.
Work through these in order
0% done- 1
Set the program by hand
Right click the file, Open with, Choose another app, pick the correct program and tick 'Always use this app'. If the program is not listed use 'Choose an app on your PC' and browse to its exe file.
- 2
Repair defaults for the file type
Settings, Apps, Default apps, type the extension such as .pdf in the file type box, and set the app there. This is more reliable than the Open with dialogue when the association is damaged.
- 3
Reset the entire default list
Settings, Apps, Default apps, scroll to the bottom and choose Reset next to 'Reset all default apps'. Use this when many types are broken at once.
- 4
Fix broken folders and shortcuts
If folders themselves throw this message, open Terminal (Admin) and run sfc /scannow, then run: DISM /Online /Cleanup-Image /RestoreHealth. This restores the shell associations Windows itself depends on.
- 5
Reinstall the missing program
If the message names an app that is gone, reinstall it, then set it as default. Files created by a specialist program often have no other viewer.
- 6
Identify an unknown file type
Turn on file name extensions in File Explorer, View, Show, and look up the extension before opening it. If the extension is exe, scr or js and you did not expect it, delete it rather than opening it.
If none of that worked
Create a new user account and try the same file. Association data lives in your profile, so if it opens there your old profile's registry entries are damaged rather than Windows itself.
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Who wrote this and how we checked it
The CommonFixes team
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We are a small group of people who spend our days repairing laptops and desktops for family, friends and small offices. Every guide here starts with a problem someone actually brought to us, and we only write down the steps that put the machine right.
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CommonFixes review desk
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This guide was last updated on 10 August 2026. If a step no longer matches what you see on screen, tell us on the contact page and we will test it again.
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