> Source: [sk127812](https://support.checkpoint.com/results/sk/sk127812)

# sk127812 - "Product: Check Point Endpoint Security -- Error 27562/27557. Changing configuration of Check Point Endpoint Security is not allowed" error message, upgrade/uninstall of Endpoint Security Client fails

| Property | Value |
|----------|-------|
| Solution ID | sk127812 |
| Date Created | 2018-06-10 |
| Last Modified | 2021-01-21 |
| Technical Level | General |
| Products | Endpoint Security |
| Versions | Cloud, E89.X, E88.X |
| OS | Windows |

## Symptoms

- Uninstall/upgrade of the Endpoint Security Client fails with this error message:  
`"Product: Check Point Endpoint Security -- Error 27562/27557. Changing configuration of Check Point Endpoint Security is not allowed. `  
`Please check that the password you have entered is correct or contact your system administrator"`

## Cause

During the failed upgrade, not all files related to self-protection were updated.

## Solution

**For versions E80.84-E81.10** :  
Apply the patch described in [sk171213](https://supportcenter.checkpoint.com/supportcenter/portal?eventSubmit_doGoviewsolutiondetails=&solutionid=sk171213).  

**For versions E80.81, E80.82, E80.83** :  
[Contact Check Point Support](https://www.checkpoint.com/support-services/contact-support/) to get a Hotfix for this issue.   
A Support Engineer will make sure the Hotfix is compatible with your environment before providing the Hotfix.

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