> Source: [sk156353](https://support.checkpoint.com/results/sk/sk156353)

# sk156353 - High CPU load of Endpoint Security Client 'cpda.exe' process on Windows Server

| Property | Value |
|----------|-------|
| Solution ID | sk156353 |
| Date Created | 2019-06-20 |
| Last Modified | 2021-08-04 |
| Technical Level | General |
| Products | Endpoint Security |
| Versions | Cloud, E89.X, E88.X |
| OS | Windows |
| Platform | Intel/PC |

## Symptoms

- * Many high CPU load (30%-40%) spikes of the *cpda.exe* process.
* The *%DADIR%\\Logs\\cpda.log* file contains this line repeated multiple times:  
  `---ERROR--- Unable to retrieve logon session data. (CLogonSessionEnumerator::Enum)`

## Solution

This problem was fixed. The fix is included in:

* [Endpoint Security Client E82.40](https://supportcenter.checkpoint.com/supportcenter/portal?eventSubmit_doGoviewsolutiondetails=&solutionid=sk164956&partition=Basic&product=Endpoint)

Check Point recommends to always upgrade to the most recent version.  

For earlier versions, [Contact Check Point Support](https://www.checkpoint.com/support-services/contact-support/) to get a Hotfix for this issue - improved Endpoint Security Client package.  
A Support Engineer will make sure the Hotfix is compatible with your environment before providing the Hotfix.  
For faster resolution and verification please collect [CPinfo](https://supportcenter.checkpoint.com/supportcenter/portal?eventSubmit_doGoviewsolutiondetails=&solutionid=sk90445) file from the Endpoint Security Client involved in the case.

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