How to Uninstall OnlyOffice

OnlyOffice is a powerful open-source office suite that provides document editing and collaboration tools for word processing, spreadsheets, and presentations. It integrates seamlessly with cloud platforms like Nextcloud, ownCloud, and Microsoft SharePoint, making it ideal for teams working remotely or in enterprise environments. While OnlyOffice offers robust functionality, users may decide to uninstall it due to performance issues, system conflicts, or migration to alternative office suites.

However, uninstalling OnlyOffice thoroughly can be more complex than expected, as residual files, registry entries, and background services often remain on the system after standard removal. This article outlines several methods to fully remove OnlyOffice from your Windows PC, including built-in OS tools, manual cleanup, and the use of Perfect Uninstaller, a third-party tool designed for deep software removal.

We’ll also cover key differences between 32-bit and 64-bit systems, as well as compatibility considerations across Windows 7, 10, and 11.

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Method 1: Use Windows Settings (Windows 10 & 11)

Steps:

1. Press Win + I to open Settings.
2. Navigate to:

• Windows 10: Apps > Apps & Features
• Windows 11: Apps > Installed apps

1. In the search bar, type “OnlyOffice”.
2. Click on the result and select Uninstall.
3. Follow the prompts to complete the process.

Key Points:

• Simple and built-in method available in both Windows 10 and 11.
• On 64-bit systems, ensure you’re removing the correct version if both 32-bit and 64-bit versions are installed.
• Not applicable to Windows 7, which lacks this modern interface.

Limitations:

• Often leaves behind registry keys, user profiles, and temporary files.
• May not remove all components such as the desktop app or browser integration module.
• Cannot handle deeply embedded installation remnants.

Success Rate: ~60%

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Method 2: Use Control Panel (All Windows Versions Including Windows 7)

Steps:

1. Open the Start Menu and search for Control Panel.
2. In Control Panel, go to Programs > Programs and Features.
3. Locate OnlyOffice in the list of installed programs.
4. Right-click it and select Uninstall.
5. Follow the on-screen instructions to complete the removal.

Key Points:

• Works consistently across Windows 7, 10, and 11.
• More comprehensive than the Settings app in listing installed software.
• Compatible with both 32-bit and 64-bit systems.

Limitations:

• Leaves behind cache folders, log files, and user-specific configuration data.
• Does not remove all traces like registry entries or startup items.
• Manual follow-up is typically required for full removal.

Success Rate: ~65%

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Method 3: Manual Removal of Leftover Files and Registry Entries

Even after using the standard uninstaller, OnlyOffice often leaves behind hidden files and registry entries that can interfere with future installations or system performance.

Steps:

1. Delete Program Files:

• Go to C:\Program Files\OnlyOffice or C:\Program Files (x86)\OnlyOffice (for 32-bit systems).
• Delete the folder if it still exists.

1. Clear AppData and LocalAppData:

• Press Win + R, type %AppData%, and hit Enter.
• Delete any folders related to OnlyOffice.
• Repeat the process by typing %LocalAppData%.

1. Edit the Registry (Advanced Only):

• Open Registry Editor (regedit) as Administrator.
• Backup the registry before making any changes.
• Navigate to:
  HKEY_LOCAL_MACHINE\SOFTWARE\OnlyOffice HKEY_CURRENT_USER\Software\OnlyOffice
• Delete any keys related to OnlyOffice.

Key Points:

• Allows deeper cleaning than standard uninstallers.
• Essential for removing startup shortcuts, cache, and user profiles.
• Recommended for advanced users only.

Limitations:

• Risk of system instability or damage if registry edits are incorrect.
• Time-consuming and error-prone for average users.
• May miss encrypted or locked files.

Success Rate: ~80%

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Method 4: Use Perfect Uninstaller (Third-Party Tool)

For a complete and safe removal of OnlyOffice—including stubborn files, registry entries, and background services—using Perfect Uninstaller is highly recommended.

Steps:

1. Download Perfect Uninstaller:

• Visit the official website or a trusted software repository.
• Choose the correct version based on your system architecture (32-bit or 64-bit).

1. Install the Software:

• Run the installer and follow the setup wizard carefully.
• Decline optional bundled software to avoid installing unwanted programs.

1. Launch Perfect Uninstaller:

• Wait for the program to scan and list all installed applications.

1. Select OnlyOffice:

• Find OnlyOffice in the application list and click Uninstall.
• The tool will handle the removal process automatically.

1. Run Leftover Scan (Optional):

• After uninstallation, use the Leftover Scanner feature to detect and delete remaining files, folders, and registry entries.

Key Points:

• Deep scanning ensures full removal of all traces.
• Fully compatible with both 32-bit and 64-bit systems.
• Works seamlessly across Windows 7, 10, and 11.

Impact of Residual Files and Registry Entries:

• Orphaned registry keys can cause system instability, slow boot times, or crashes.
• Hidden cache files consume disk space and may conflict with reinstallation.
• Background services left running can drain memory and CPU resources unnecessarily.

Limitations:

• Advanced features may require purchasing a license.
• Potential risk of downloading fake or malicious clones from unofficial sources.

Success Rate: ~95%

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Conclusion and Professional Opinion

Uninstalling OnlyOffice effectively requires more than just using the default uninstaller. Due to its modular structure and integration with the operating system, many users find that residual files, registry keys, and cached data remain after removal, potentially causing system slowdowns, conflicts, or errors.

While Windows Settings and Control Panel offer basic uninstallation capabilities, they often leave behind configuration files and registry entries. For deeper cleaning, manual removal is effective but demands technical expertise and carries risks, especially when editing the registry.

The most reliable and safest solution for most users is to use Perfect Uninstaller, which performs deep scans, identifies and removes all traces of OnlyOffice, and ensures a clean system environment. Its compatibility with Windows 7, 10, and 11, as well as both 32-bit and 64-bit architectures, makes it a versatile choice.

From a professional standpoint, we recommend starting with built-in OS tools, followed by manual cleanup if necessary. If system anomalies persist or maximum cleanliness is required, turn to Perfect Uninstaller to guarantee full removal and optimal system health.

Always download third-party tools from verified and secure sources to protect against malware infection or system compromise. By choosing the appropriate method based on your system version and experience level, you can safely and effectively remove OnlyOffice from your computer.