Advice and Solutions (Forum Knowledgebase) Disclaimer. Read before using materials.

This article is about Kaspersky Endpoint Security for Windows (KES for Windows)

Version: any KES11.* on any OS

Scenario:

The following error appears during the installation:

Error 27310. Failed to install the directory file for the digital signature 

Solution:

1. Run kavremover utility as administrator.

2. Delete KES drivers (if they were not deleted by kavremover) located here - C:\Windows\System32\drivers\

3. Go to c:\Windows\System32\CatRoot\{F750E6C3-38EE-11D1-85E5-00C04FC295EE} and delete all KasperskyLab_*.cat files

4. Reboot

5. Install KES

6. If the issue will not be solved, try to restore catroot https://answers.microsoft.com/en-us/windows/forum/all/cant-rename-catroot2-and-softwaredistribution/ac10e0ba-9ead-4284-91e5-31acc430bd08