> Source: [sk171398](https://support.checkpoint.com/results/sk/sk171398)

# sk171398 - EFRService.exe causes high CPU on Windows Server machines

| Property | Value |
|----------|-------|
| Solution ID | sk171398 |
| Date Created | 2021-01-04 |
| Last Modified | 2021-12-19 |
| Technical Level | General |
| Products | Endpoint Security |
| Versions | Cloud, E89.X, E88.X, R82.20, R82.10, R82, R81.20 |
| OS | Windows |

## Symptoms

- * EFRService.exe causes high CPU on Windows Server machines   

* *%PROGRAMDATA%\\CheckPoint\\Logs\\EFRService.log* contains a lot of entries with user names that repeat multiple times:

  ```
  
  DATE TIME W  151c EFRUtils::UserName2SidString: Unable to find SID for user - \ADMIN
  DATE TIME W  151c EFRUtils::UserName2SidString: Unable to find SID for user - \ADMIN
  DATE TIME W  151c EFRUtils::UserName2SidString: Unable to find SID for user - \ADMIN55
  DATE TIME W  151c EFRUtils::UserName2SidString: Unable to find SID for user - \ADMIN
  DATE TIME W  151c EFRUtils::UserName2SidString: Unable to find SID for user - \ADMIN55
  DATE TIME W  151c EFRUtils::UserName2SidString: Unable to find SID for user - \ADMIN
  DATE TIME W  151c EFRUtils::UserName2SidString: Unable to find SID for user - \ADMIN
  DATE TIME W  151c EFRUtils::UserName2SidString: Unable to find SID for user - \ADMIN
  DATE TIME W  151c EFRUtils::UserName2SidString: Unable to find SID for user - \ADMIN55
  DATE TIME W  151c EFRUtils::UserName2SidString: Unable to find SID for user - \TEST
  DATE TIME W  151c EFRUtils::UserName2SidString: Unable to find SID for user - \ADMIN
  DATE TIME W  151c EFRUtils::UserName2SidString: Unable to find SID for user - \ADMIN55
  DATE TIME W  151c EFRUtils::UserName2SidString: Unable to find SID for user - \ADMIN
  ```

## Solution

[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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