Windows
RAR File Associations in Windows: How to Change Them
A file association tells Windows which app to launch when you double-click a given file type; RAR associations can break after uninstalling an archive tool.
Windows keeps a record, per file extension, of which installed app should handle a double-click. For the quick task of changing that setting, see setting the default RAR opener. This guide covers how the association system actually works and how to repair it when it breaks.
What a file association actually is
When you install an archive tool like WinRAR or 7-Zip, it can register itself as capable of opening .rar files. Windows stores this registration and a record of your chosen default. Double-clicking a file then looks up that record and launches the associated app.
Per-user vs. system-wide
- Per-user default: what you set through Open with or Settings > Default apps applies only to your Windows account.
- System-wide registration: when an installer registers an app as *capable* of handling
.rarfiles (so it appears as an option at all), this is typically written for all users on the machine, though the chosen default can still differ per account.
In practice, this means two people signed into the same PC can have different default RAR openers, even if only one archive tool is installed.
How associations break
Uninstalling an archive tool typically removes its registration, but the stored default association can be left pointing at the now-missing app. Windows then either falls back to "choose an app" prompts every time, or shows a generic icon with no working default.
Repairing a broken association
- 1Right-click a .rar fileChoose Open with > Choose another app.
- 2Select a currently installed archive toolIf none is installed, install one first — see extracting RAR files without WinRAR for free options.
- 3Check "Always use this app"This overwrites the stale association.
- 4If the app still doesn't appear as an optionReinstall or repair it so it re-registers itself with Windows.
Resetting to Windows defaults
In Settings > Apps > Default apps, a "Reset" option clears your custom choices and returns file types to Microsoft's recommended defaults, such as native handling on Windows 11 where available. This is a reasonable step if associations feel generally tangled rather than just wrong for one file type.
How to Set the Default RAR File Opener in Windows
If double-clicking a RAR file opens the wrong app, or you've just installed a new archive tool and want it to take over, you can set the default opener in a couple of clicks. This guide covers the quick task itself; for a deeper look at how Windows file associations work and how to fix them when they break, see RAR file associations in Windows.
Method 1: Open with
- 1Right-click any .rar fileSelect "Open with" from the context menu.
- 2Choose "Choose another app"This shows the full list of installed apps that can handle the file.
- 3Select your preferred appPick the archive tool you want to use, such as 7-Zip or WinRAR.
- 4Check "Always use this app to open .rar files"This makes the change permanent instead of one-time.
- 5Click OKThe selected app is now the default for RAR files.
Method 2: Settings > Default apps
- 1Open SettingsGo to Apps, then Default apps.
- 2Search for .rar in "Set defaults for file types"Or search by app name if you prefer setting all its file types at once.
- 3Select your preferred app for .rarWindows updates the association immediately.
Frequently asked questions
What is a file association in Windows?
A stored record of which installed app should open a given file type when you double-click it.
Why did my RAR association break after uninstalling WinRAR?
Uninstalling removed WinRAR's registration, but the stored default can still point at it, leaving Windows unable to find the app.
Are file associations shared between all users on a PC?
App registration is typically system-wide, but the chosen default app per file type is usually a per-user setting.
How do I reset RAR (and other) file associations to defaults?
Go to Settings > Apps > Default apps and use the Reset option to clear custom choices.
How is this different from just setting a default RAR opener?
Setting a default is the quick, one-time task; this guide explains the underlying system and how to fix it when it's broken, not just choose a preference.
How do I change the default app for RAR files in Windows?
Right-click a .rar file, choose Open with > Choose another app, select your preferred app, and check "Always use this app." Or use Settings > Apps > Default apps.
Why isn't my archive tool showing up as an option?
It may not have registered as a RAR handler during installation. Reinstalling or repairing it usually fixes this.
Does setting a default RAR opener affect ZIP files too?
No, file type associations are set per extension, so RAR and ZIP defaults are independent.
Do I need admin rights to change the default RAR opener?
Usually no, since this sets a per-user preference, not a system-wide setting.
Related guides
- How to Extract RAR Files Without WinRARYou don't need WinRAR to extract a RAR file. Every major platform has a free or built-in route instead.
- Why Won't My RAR File Open?Work through these causes in order, from most to least common. Most RAR files that "won't open" are fixed at the first or second step.
- How to Open a RAR File on Windows 11Windows 11 (23H2 and later) can open most RAR files directly in File Explorer, with a third-party extractor as a fallback for anything the built-in support doesn't cover.
- How to Uninstall WinRARUninstalling WinRAR uses Windows' standard removal process, but you may also want to reset file associations it took over.
- Archive Files on Windows: Complete ReferenceWindows handles ZIP files natively, but RAR support depends heavily on which version of Windows you run and how recently it has been updated.
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