Software⏱️ 2 min read📅 2026-05-29

How to Fix: How to completely uninstall and reinstall com0com virtual serial port drive

Uninstall com0com virtual serial port driver in Windows 10 with Secure Boot enabled.

Quick Answer: To completely uninstall and reinstall the com0com virtual serial port driver, use the 'Setup' tool to remove the driver, then manually delete the driver files from the Windows System32 directory. After reinstallation, ensure Secure Boot is disabled during installation.

To completely uninstall and reinstall the com0com virtual serial port driver in Windows 10 with Secure Boot enabled, follow these steps:

🔍 Why This Happens

  • [Cause]

✅ Best Solutions to Fix It

Method 1: Secure Boot Reset

  1. Step 1: Restart your Windows 10 system and enter the UEFI firmware settings.

Method 2: Manual Driver Removal

  1. Step 1: Open the Device Manager and expand the 'Ports (COM & LPT)' section.

Method 3: Uninstalling from Control Panel

  1. Step 1: Open the 'Control Panel' and navigate to 'Programs and Features'.

Method 4: Reinstalling from Setup Files

  1. Step 1: Download the latest setup files for com0com virtual serial port driver.

✅ Wrapping Up

After completing these steps, your Windows 10 system should have a clean state where the next time you run setupc.exe or setupg.exe, it will prompt you for driver installation as it did on a fresh virtualized Windows OS.

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