Opera Preinstall Data on Xiaomi: a hidden folder that “eats” memory – what it is and how to deal with it

Have you ever looked into your Xiaomi storage and found a mysterious folder of Opera Preinstall Data, which takes hundreds of megabytes — or even several gigabytes? It is not deleted by standard methods, has no visible interface in the settings, but persistently “eats” precious space on the internal drive. What is this data, why it appears on Xiaomi smartphones, and most importantly, how to get rid of it without risk to the system?

This folder is one of the most common junk artifacts that owners of Redmi, Poco and Mi devices encounter. Its appearance is due to preinstalled applications from Opera, which Xiaomi integrates into the MIUI firmware. However, even after the Opera browser is deleted or the settings are reset, the folder often stays in place, continuing to occupy space. In this article, we will discuss in detail the nature of this data, its security, and legal and technical methods of cleaning, from simple to advanced, including working with ADB.

What is Opera Preinstall Data and why does it appear on Xiaomi?

The Opera Preinstall Data folder is a repository of cached and preloaded data that Opera (or its modifications such as Opera Mini or Opera Touch) uses to speed up work, and in Xiaomi’s case, this data is transferred to the device during the production phase, as the company enters into partnerships with Opera Software to pre-install their software.

The main reasons for the folder:

• 📦 Pre-installation: Xiaomi includes Opera browser in standard set of applications MIUI, Even if the user does not run it.
• 🔄 Auto Update: The system can download updates to Opera in the background, replenishing the folder with new data.
• 🗑️ Incomplete Deletion: When you delete your browser through the application menu, the data folder often remains intact.
• 📱 Regional Firmware: In some versions MIUI For India, Europe or Global, folder may take up more space due to localized content.

It is important to understand that Opera Preinstall Data is not a virus or malware. It is a legal cache, but its presence on a device where the user does not use Opera raises reasonable questions. Moreover, the folder can be automatically restored after cleaning if the system considers it critical for the operation of preinstalled services.

Where is the Opera Preinstall Data folder and how to find it?

The folder is hidden from direct access through the standard MIUI file manager, but it can be detected in several ways:

1. File Manager with root rights: If you have root access, go to /data/data/com.opera. or /sdcard/Android/data/com.opera. Here, the * can be replaced by browser, mini or preinstall.
2. With Third-Party File Manager: Applications like Solid Explorer or FX File Explorer with Hidden File Mode enabled (Settings → Show Hidden Files) can display a folder.
3. Through ADB Shell: Connect your phone to your PC and execute the command: adb shell ls -la /data/data/ | grep opera This will show all folders associated with Opera.

If the folder is not located in the specified paths, check the alternative locations:

• 📁 /storage/emulated/0/Android/data/com.opera.preinstall
• 📁 /data/app-lib/com.opera.* (for older versions of Android)
• 📁 /system/priv-app/Opera* (if the browser is sewn into the system partition)

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Use Google Play's DiskUsage app to visually see which folders take up the most space on your internal drive, and it will show Opera Preinstall Data as a large block, even if the path to it is hidden.

Can Opera Preinstall Data Be Deleted Safely: Risks and Consequences?

Deleting the Opera Preinstall Data folder is not a secure process, and here are a few key points to understand:

⚠️ Note: If the folder is in the section /system (for example, /system/priv-app/Opera), Deleting it can lead to system failure or inability to download MIUI. In this case, the device is required to re-flash.

Safe removal scenarios:

• ✅ The folder is located in /sdcard/Android/data/ or /data/data/ — It can be removed without consequences.
• ✅ You do not use the Opera browser and are prepared for the related functions (such as bookmark synchronization) to stop working.
• ✅ You have a backup of the data in case of a failure.

Possible consequences of incorrect removal:

If you are not sure about your actions, it is better to limit the shutdown of the Opera browser through the settings (Settings → Applications → Application Management → Opera → Disable). This will prevent the generation of new data, but will not free up the already occupied space.

How to remove Opera Preinstall Data: from simple to complex

There are several ways to get rid of unnecessary Opera data, varying in complexity and rights required, starting with the safest ones:

1. Remove via application settings (without root)

If the Opera browser is not deleted:

1. Go to Settings → Applications → Application Management.
2. Find Opera (or Opera Mini) and select Warehouse.
3. Click Clear Data and Clear Cache.
4. Return to the main menu of the app and select Delete (or Disable if Deletion is blocked).

2. Manual deletion of the folder through the file manager (with root)

If you have root access:

Backup important data |Install root-enabled file manager (e.g. Root Explorer) |Check the path to the folder via ADB or DiskUsage |Unplug Opera browser in the settings-->

1. Open a file manager with root rights.
2. Go to /data/data/ or /sdcard/Android/data/.
3. Find the folders with the names com.opera.* and delete them.
4. Reset the device.

3. Removal via ADB (without root but with debugging)

If root is not available, but USB debugging is enabled:

1. Connect your phone to your PC and open the command line in the folder with ADB.
2. Run the command to delete the Opera packet: adb shell pm uninstall --user 0 com.opera.preinstall (replace com.opera.preinstall with the current packet ID).
3. Clear the cache: adb shell pm clear com.opera.preinstall

4. Flashing the device (extreme case)

If the folder is recovered after all the manipulations, the radical method is to clean the MIUI firmware through Fastboot or Recovery, which will delete all preset data, but require a complete reset.

⚠️ Warning: Flashing through informal builds (like LineageOS) can take you out of warranty and lead to problems with Widevine L1 (Downgrades in streaming on Netflix or Disney+).

How to Prevent Opera Preinstall Data from Reappearing

Even after successful deletion, the folder can return.

• 🔧 Turn off auto-update apps: Go to Google Play → Settings → Auto Update Apps and select Do Not Update Automatically.
• 📵 Block background activity: In Opera settings (Settings) → Annexes → Opera → Battery) select Limit background activity.
• 🛡️ Use Magisk modules (for root users): Modules like Universal Debloater or Xiaomi Debloater can block the installation of unnecessary packages.
• 🔄 Check Storage regularly: Once a month, run DiskUsage or similar utilities to monitor junk folders.

If you plan to update MIUI, note that new firmware versions can add pre-installed Opera data again, in which case only manual deletion after each update will help.

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The most reliable way to avoid Opera Preinstall Data returning is to switch to custom firmware (like Pixel Experience or Havoc OS) that doesn’t have any pre-installed apps from Xiaomi or Opera.

Alternative solutions: if removal does not help

If none of these methods worked, consider alternative approaches:

1. Transfer of the folder to SD-card (if supported): Some file managers (such as Total Commander) allow you to create a symbolic link from the folder to the internal storage to the external memory card.
2. Using Opera to clean up cache: Paradoxically, sometimes running the Opera browser and manually clearing the cache through its settings (Opera → Settings → Clear data) helps reduce folder size.
3. Appeal in support of Xiaomi: In rare cases, the folder may be the result of a firmware failure.Official support can offer a solution through OTA-renewal or service center.

If the problem persists, consider buying a smartphone with a pure Android (like Google Pixel or Motorola) that doesn’t have pre-installed garbage.

FAQ: Frequent questions about Opera Preinstall Data on Xiaomi