> Source: [sk173305](https://support.checkpoint.com/results/sk/sk173305)

# sk173305 - Endpoint Security Client upgrade fails due to CryptoPro software

| Property | Value |
|----------|-------|
| Solution ID | sk173305 |
| Date Created | 2021-05-18 |
| Last Modified | 2021-05-24 |
| Technical Level | Advanced |
| Products | Endpoint Security |
| Versions | Cloud, E89.X, E88.X |
| OS | Windows |

## Symptoms

- * Endpoint Security client upgrade fails due to CryptoPro software
* The issue exists with Full Disk Encryption blade installed
* In Endpoint Security Client installation log:  

  ```
  
  FDE Log: Start upgrading preboot files:
  FDE Log: Failed to initialize ServiceMediaDriver, is the filter driver up and running?
  FDE Log: Failed to find mountable SA
  FDE Log: Upgrade failure.
  MSI (s) (14!D0) [08:27:57:343]: Product: Check Point Endpoint Security -- Error 27116.Upgrade failure. The installer failed to upgrade a legacy installation.
  ```

* In %ProgramData%\\Checkpoint\\Endpoint Security\\Full Disk Encryption\\FDE_dlog.txt:  

  ```
  
  20210405 101941,689+0400 I MsiExec.exe:848 FDEInstallDLL Start upgrading preboot files:
  20210405 101941,705+0400 I MsiExec.exe:848 Failed to initialize ServiceMediaDriver, is the filter driver up and running?
  20210405 101941,705+0400 I MsiExec.exe:848 FDEInstallDLL Failed to find mountable SA
  20210405 101941,705+0400 E MsiExec.exe:848 Upgrade failure.
  ```

* In Endpoint Security Client installation log:  

  ```
  
  MSI (s) (14!D0) [08:27:57:343]: Product: Check Point Endpoint Security -- Error 27569.Full Disk Encryption prepare installation failed.
  ```

## Cause

During installation\\upgrade of the Endpoint Security Client, the CryptoPro software injects its DLLs into the installation\\upgrade process.

<br />

## Solution

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

---

# Agent Instructions

This content is from the Check Point Support Center (https://support.checkpoint.com), the official knowledge base for Check Point cybersecurity products.

## Navigating This Knowledge Base

- **Complete index**: [llms.txt](https://support.checkpoint.com/llms.txt)
- **All SK articles**: [SecureKnowledge Sitemap](https://support.checkpoint.com/sitemaps/secureknowledge-sitemap-index.xml)
- **SK article URL pattern**: `https://support.checkpoint.com/results/sk/{skId}`
- **Markdown responses**: AI bot User-Agents automatically receive `text/markdown` content