> Source: [sk181902](https://support.checkpoint.com/results/sk/sk181902)

# sk181902 - Harmony Endpoint Security Client upgrade error on a machine installed with Trend Micro protection

| Property | Value |
|----------|-------|
| Solution ID | sk181902 |
| Date Created | 2024-02-07 |
| Last Modified | 2025-06-24 |
| Technical Level | Advanced |
| Products | Endpoint Security |
| Versions | E89.X, E88.X |
| OS | Windows |

## Symptoms

- * When you upgrade the Endpoint Security client on a Windows device, an error occurs:  
  Error 1404. Could not delete key \\SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion\\Image File Execution Options\\nginx.exe. Verify that you have sufficient access to that key, or contact your support personnel
* The corresponding error in SmartEndpoint:  
  Could not delete key \\SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion\\Image File Execution Options\\nginx.exe. Verify that you have sufficient access to that key, or contact your support personnel
* The solution documented in sk171829 did not resolve the issue.
* Trend Micro (or YaXin TrustOne) protection is installed on the device.

## Cause

Trend Micro (or YaXin TrustOne) protection installed on the device blocks modifying the HKLM\\SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion\\Image File Execution Options\\ngnix.exe Windows registry key.

## Solution

This solution requires authentication. Please log in to view the full solution.

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