How to Fix Samsung Galaxy S25 Ultra Secure Folder Not Opening

If Secure Folder on your Samsung Galaxy S25 Ultra refuses to open, you may not be able to access important files, apps, or private photos stored inside it. This feature is designed to protect sensitive data using Samsung Knox, but sometimes software glitches, authentication errors, or system restrictions can prevent it from launching properly.

The good news is that this issue is usually caused by simple settings problems in One UI 7. A few quick adjustments can often restore Secure Folder and allow you to access your protected content again.

Why Secure Folder Is Not Opening on Your Galaxy S25 Ultra

• The Secure Folder app has temporarily frozen or crashed.
• A recent software update caused a minor system bug.
• Authentication settings such as fingerprint or PIN are not responding.
• Battery optimization is restricting Secure Folder from running properly.
• Corrupted app cache data is preventing the app from launching.

Restart Your Phone

A quick restart refreshes system processes and clears temporary glitches that may stop Secure Folder from opening. This simple step often resolves issues related to frozen apps or background services.

1. Swipe down from the top right of the screen, and then tap the Power icon.
2. Tap Restart, and then wait for the phone to reboot completely.

After the phone restarts, try opening Secure Folder again.

Force Stop Secure Folder

If Secure Folder is stuck in the background, forcing the app to stop will reset it. This clears the active process and allows the system to launch it fresh.

1. Open Settings, and then tap Apps.
2. Tap Secure Folder, and then tap Force stop.

Wait a few seconds before opening Secure Folder again from your app drawer.

Clear the Secure Folder App Cache

Over time, cached data can become corrupted and interfere with how an app launches. Clearing the cache removes temporary files while keeping your personal data inside Secure Folder intact.

1. Open Settings, and then tap Apps.
2. Tap Secure Folder, and then tap Storage.
3. Tap Clear cache, and then close Settings.

Now try launching Secure Folder again.

Check Secure Folder Authentication Settings

Secure Folder requires a working lock method such as PIN, password, or fingerprint. If the authentication method is malfunctioning, the app may fail to open.

1. Open Settings, and then tap Security and privacy.
2. Tap More security settings, and then tap Secure Folder.

Reenter your PIN or password, then confirm that fingerprint unlock is enabled if you use biometrics.

Disable Battery Restrictions for Secure Folder

Aggressive battery optimization can stop Secure Folder from running properly in the background. Removing these restrictions ensures the app launches normally.

1. Open Settings, and then tap Apps.
2. Tap Secure Folder, and then tap Battery.
3. Select Unrestricted, and then exit Settings.

Once this change is applied, try opening Secure Folder again.

Update Your Phone Software

Software updates often include bug fixes that improve system apps like Secure Folder. Installing the latest update can resolve compatibility problems introduced by previous versions.

1. Open Settings, and then tap Software update.
2. Tap Download and install, and then follow the on screen instructions.

If an update is available, install it and restart your device afterward.

Secure Folder is one of the most important privacy tools on the Galaxy S25 Ultra, and it usually works reliably. If it suddenly stops opening, restarting the device, clearing the cache, or adjusting app permissions often brings it back to normal quickly.

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