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COMODO Internet Security 12.3.3.8140
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How to Uninstall Comodo Internet Security

Remove COMODO Internet Security through Control Panel on Windows, then use the COMODO uninstaller tool to purge remaining files and registry entries from your system.

How to Uninstall COMODO Internet Security via Control Panel

The standard Windows removal process handles most of the work. Open Control Panel, navigate to Programs > Programs and Features, locate COMODO Internet Security in the list, and click Uninstall. The application will launch its removal wizard. Follow the prompts—it typically takes 2-3 minutes. Windows 10, Windows 11, Windows 8, and Windows 7 all follow this same path, though the Control Panel interface varies slightly.

The wizard asks whether to keep your quarantine and log files. Select "Remove all" unless you need to preserve scanning history. Once complete, restart your computer. This clears the main application files but leaves fragments behind.

Removing Residual Files and Registry Entries

How to uninstall COMODO Internet Security completely requires a second step. The initial removal leaves behind configuration files, temporary data, and registry keys. COMODO maintains installation remnants in several locations:

C:\Program Files\COMODO — Contains leftover application folders

C:\ProgramData\COMODO — Stores quarantine and configuration data

Registry paths — HKEY_LOCAL_MACHINE\SOFTWARE\COMODO entries persist

Manual deletion works, but it's tedious and error-prone. Instead, download COMODO's official uninstaller tool from their support page. This dedicated utility scans for orphaned files and registry references that the standard removal misses. Run it after Control Panel removal for thorough cleanup.

Using the COMODO Uninstaller Tool

The standalone uninstaller executes as an administrator. Right-click the executable and select "Run as administrator" to grant necessary permissions. The tool scans your system, identifies COMODO-related entries, and removes them in batch. It's faster and more reliable than manual deletion.

On 32-bit systems and 64-bit systems, the process is identical. The uninstaller detects your Windows architecture automatically. No configuration needed—the tool handles platform detection.

Pro Tip: If you plan to reinstall COMODO, skip the dedicated uninstaller and instead navigate directly to Control Panel removal only. This preserves your saved rules and firewall configurations in the registry, allowing a faster reinstallation without reconfiguring the COMODO firewall download settings from scratch.

When Uninstall Fails

Occasionally the removal wizard hangs or reports permission errors, especially if the COMODO antivirus free suite is actively running. Restart into Safe Mode (press F8 or Shift+F8 during boot on Windows 10/11), then run the Control Panel uninstall. Safe Mode disables active security processes, preventing file locks.

For stubborn installations, boot from a Linux USB or use third-party uninstaller software like Revo Uninstaller. These tools access files that Windows normally protects. This becomes necessary only if the standard and COMODO uninstaller approaches both fail.

Alternatives to Consider

If you're removing this free internet security suite because of performance concerns, Microsoft Security Essentials offers lightweight protection with minimal system overhead. Alternatively, Emsisoft Anti-Malware provides dual-engine detection without the resource demands that make some users uninstall COMODO.

Before deciding to remove it entirely, review configuration options for the free antivirus to disable COMODO sandbox protection or schedule scans during idle hours. Many users uninstall unnecessarily when disabling specific features would solve the actual problem.

Final Cleanup and Verification

How to uninstall COMODO Internet Security thoroughly: after running both the Control Panel wizard and the standalone uninstaller, restart your machine and verify removal. Check Task Manager's startup tab—COMODO processes should not appear. Open Control Panel again and confirm it no longer lists the software.

If Windows Defender or another security tool shows alerts about unprotected status, enable it explicitly. COMODO's removal disables itself automatically but doesn't activate Windows Defender as a replacement.