AppData Folder in Windows 10: What It Is & How to Use It

The AppData folder in Windows 10 is a hidden system folder where programs store their settings, temporary files, caches, and user-specific data. It’s located at C:\Users\[YourUsername]\AppData and contains three subfolders: Local, LocalLow, and Roaming. This article explains what each subfolder does, why the folder is hidden, how to access it, and common issues you might run into.

Why Is the AppData Folder Hidden?

Microsoft hides the AppData folder by default to prevent users from accidentally deleting or modifying important files. Most files inside are not meant to be opened directly—they’re used by applications in the background. If you delete or move them, programs may break, lose your settings, or even fail to launch.

To view it, you need to enable “Hidden items” in File Explorer: click the View tab, then check the Hidden items box. Alternatively, you can type %appdata% in the address bar of File Explorer or in the Run dialog (Win+R) to jump straight to the Roaming folder.

The Three Subfolders: Local, LocalLow, and Roaming

Each subfolder serves a different purpose, and understanding the difference helps you know where to look for a specific app’s data.

Local – Stores data that is specific to the computer and not meant to be synced across devices. This includes large caches, downloaded updates, and temporary files. For example, Google Chrome stores its cache and profile data here.
LocalLow – Similar to Local, but with restricted security permissions. It’s used by applications that run with lower integrity levels, such as browser plugins (e.g., Adobe Flash) or older programs. You’ll rarely need to access this folder.
Roaming – Contains data that can be synced across multiple computers in a domain network. If you log into a different PC on the same domain, your app settings and preferences follow you. For example, Firefox profiles and many game saves are stored here.

How to Open the AppData Folder

There are several ways to access AppData, depending on what you need.

Using File Explorer: Open File Explorer, click the View tab, and check Hidden items. Then navigate to C:\Users\[YourUsername]\AppData.
Using the Run dialog: Press Win+R, type %appdata% and press Enter. This takes you directly to ...\AppData\Roaming.
Using the address bar: In any File Explorer window, type %localappdata% to go to the Local folder, or %appdata% for Roaming.

If you want to see the entire AppData folder (including LocalLow), you must unhide hidden items first. The Run command only works for the specific subfolder.

What Can You Do Inside AppData?

Most users open AppData to back up game saves, transfer settings to a new PC, or free up disk space by deleting temporary files. Here are common tasks:

Backing up game saves: Many games store save files in AppData\Local\[GameName] or AppData\Roaming\[GameName]. Copy the entire folder to an external drive.
Cleaning up space: The Local\Temp folder contains temporary files that can be safely deleted (as long as no program is currently using them). You can also use Disk Cleanup or Storage Sense to do this automatically.
Resetting an app: If an application is misbehaving, deleting its folder inside AppData (after backing it up) can reset it to default settings. This is often a last resort before reinstalling.

Common Problems and Misconceptions

One common misconception is that AppData is a virus or malware because it’s hidden and has a strange name. It’s a legitimate Windows folder. However, malware can hide there, so if your antivirus flags something, check the path carefully.

Another issue is “AppData is too large.” Over time, apps accumulate caches and logs. You can safely delete the contents of Local\Temp, but be cautious with other folders—some apps store important data there. Use the built-in Storage Sense (Settings > System > Storage) to remove temporary files safely.

If you accidentally delete a folder, some apps will recreate it on next launch, but you may lose your settings or login credentials. Always back up before deleting.

AppData vs. ProgramData vs. Public Documents

These three locations are often confused:

AppData – Per-user application data (settings, caches). Located in C:\Users\[User]\AppData.
ProgramData – Application data that is shared across all users on the computer, regardless of who is logged in. Located in C:\ProgramData (also hidden).
Public Documents – User-created files that are meant to be shared with all users. Located in C:\Users\Public\Documents.

If an app needs to store data that applies to all users (like a shared database), it uses ProgramData. If it’s specific to one user, it uses AppData.

Frequently Asked Questions

Is it safe to delete the AppData folder?

No. Deleting the entire AppData folder will break almost every program on your system. You can delete individual subfolders for apps you no longer use, but only after backing them up. Better to use Disk Cleanup or Storage Sense for temporary files.

Why can’t I see AppData even after enabling hidden items?

Make sure you are looking in the correct user folder (C:\Users\[YourUsername]). If you’re using a Microsoft account, the folder name may be the first five letters of your email address. Also, check that “Hidden items” is checked in the View tab of File Explorer—not just in the folder options.

What does %appdata% mean?

It’s a Windows environment variable that points to the Roaming subfolder of the current user’s AppData directory. Typing it in File Explorer or Run jumps directly there. Similarly, %localappdata% points to the Local subfolder.

Can I move the AppData folder to another drive to save space?

It’s not recommended. Many programs expect it to be in the default location and will break if you move it. Instead, you can move individual large folders (like browser caches) by changing the app’s settings, or use symbolic links (mklink) if you’re advanced, but this can cause issues.

Why is AppData so large?

It accumulates caches, logs, and temporary files over time. Browser caches, game shaders, and update downloads can take gigabytes. Use Storage Sense to clean temporary files, or manually delete the contents of Local\Temp.

Is AppData the same as “Application Data” in older Windows versions?

Yes. In Windows XP and earlier, it was called “Application Data” and was visible. Microsoft renamed it to AppData in Windows Vista and made it hidden to prevent accidental modification.

General steps for current mainstream versions; menus can differ by device and version. See the disclaimer or report an error.

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