How To Fix Kaspersky Endpoint Security Installation Error 27310

In this post, I’m going to show you how to fix error 27310 when you install Kaspersky Endpoint Security (KES) 11.4 on a Windows 10 computer.

1. Run kavremover to delete the tails;
2. Delete KES drivers if they are not deleted in step one;
3. Delete all KasperskyLab_*.cat under C:\Windows\System32\CatRoot\{F750E6C3-38EE-11D1-85E5-00C04FC295EE} folder;

Step 1: Download and Run Kavremover

• Download the Kavremover tool;
• Run the file once it has downloaded.
• Read through the End User License Agreement and click Accept.

• Enter the security code from the image.
• Select the Kaspersky application you wish to remove, then click Remove. 

• Once you receive the notification that the application was successfully removed, restart the computer;

Step 2: Delete Any Drivers If Not Deleted In Step One

• Open Windows Explorer;
• Navigate to C:\Windows\System32 folder;
• Search for any Kaspersky driver starting with kl*.sys
• If you find any, delete it; you may need the Administrator credential for that.

Step 3: Delete All Kaspersky Security Catalog Files

• Open Windows Explorer;
• Navigate to C:\Windows\System32\CatRoot{F750E6C3-38EE-11D1-85E5-00C04FC295EE}
• Select and delete the Kaspersky security catalog files

• Restart the computer one more time

Now you should be able to install Kaspersky endpoint security without any problem.