> Source: [sk183254](https://support.checkpoint.com/results/sk/sk183254)

# sk183254 - Cannot reinstall Harmony Endpoint Security Client

| Property | Value |
|----------|-------|
| Solution ID | sk183254 |
| Date Created | 2025-03-14 |
| Last Modified | 2025-03-17 |
| Technical Level | Advanced |
| Products | Endpoint Security |
| Versions | E88.X |
| OS | Windows |

## Symptoms

- * Reinstalling the Harmony Endpoint Security client using the full export package failed without displaying an error and reverted to the previously installed version, which should have been fully uninstalled.
* Attempt to install the Harmony Endpoint Security client with initial agent stuck at 96% of 'downloading package' deployment stage. CPinfo cpda.log showed error `4294967295 Not all Deployment Modules are in state INSTALLED, no restart requested.`
* Installer log shows `Starting Checkpoint Early Launch Anti-Malware driver installation !!! Cannot copy driver file from C:\Program Files (x86)\CheckPoint\Endpoint Security\EPElamDriver\epelam.sys to C:\WINDOWS\system32\drivers\epelam.sys !!! Access is denied. (0x5) Checkpoint Early Launch Anti-Malware driver installation finished with error CustomAction EPElamDrvInstall_x64.E1A3D5B0_D5DD_4F4B_85BE_4BDE9495D6B6 returned actual error code 1603 (note this may not be 100% accurate if translation happened inside sandbox) Action ended 12:14:32: InstallExecute. Return value 3.` ` 2024-12-02 12:18:35 installation of 88.32.2003 bring epelam.sys 8.68.63.4
  2024-12-02 12:34:42 uninstall of 88.32.2003 
  With the following errors:
  ! Failed to delete file C:\WINDOWS\system32\drivers\epelam.sys.
  ! Access is denied. (0x5)

  ! Failed to delete file C:\WINDOWS\system32\drivers\epnetflt.sys. Trying alternative way.
  ! Access is denied. (0x5)

  Uninstalling driver package (vsdatant) failed (not critical), error 3
  Uninstallation successful.
  InstallAddiotionalFile: Failed to delete C:\WINDOWS\system32\DRIVERS\vsconfig.xml: 2

  2024-12-02 12:59:52 installation of 88.32.2003 and all other installation of the full package with USERINSTALLMODE=201081 failed on:

  !!! Cannot copy driver file from C:\Program Files (x86)\CheckPoint\Endpoint Security\EPElamDriver\epelam.sys to C:\WINDOWS\system32\drivers\epelam.sys
  !!! Access is denied. (0x5)`

## Cause

Drivers from the previous installation remain on the system.

## Solution

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