net stop cryptsvc ren %systemroot%\system32\catroot2 catroot2_old net start cryptsvc
The error message typically appears during installation or an update, often displayed as a variant of this:
Follow these steps in order, as they are arranged from the most common, simple fixes to more complex solutions. After each step, restart your PC and attempt to run the Kaspersky installer again to see if the issue is resolved.
The most frequent cause is "ghost" drivers from a previous Kaspersky installation that didn't clear out properly. Standard Windows uninstallation often leaves behind registry entries that block new driver updates. Download the official Kaspersky Kavremover tool .
In enterprise environments, Group Policy may block third-party drivers. kaspersky error installing driver klim6sys x64 upd
If you have a specific error code, you can use the following table to find a tailored solution. The error code is usually displayed in the installation error message itself.
Download the from the official Kaspersky support website.
Navigate to the following path: HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Network Locate the binary parameter named . Right-click Config and select Rename . Change it to Config2 .
Open (type services.msc in the Windows search bar). Locate Network Setup Service . Ensure its Startup type is set to Manual . If you have a specific error code, you
If you have tried all the steps in this guide and the error persists, the final recourse is to contact . They can analyze the specific error code and, more importantly, the installation log files from your system to provide a custom solution for your unique configuration.
Damaged Windows system files, particularly those related to the driver catalog (such as the catroot2 folder), can prevent the OS from recognizing or verifying the new driver.
A: kavremover is highly effective but not always a 100% solution. Your next steps should be to check for corrupted OS files by running System File Checker ( sfc /scannow in an admin command prompt) and then focus on repairing Windows' Cryptographic Services (using the catroot2 fix outlined in Step 4.2). If that fails, proceed with the method for disabling driver signature verification.
In some complex cases, leftover registry entries from uninstalled software can cause persistent conflicts. This is an advanced fix and should only be attempted if you are comfortable editing the Windows Registry. Incorrect changes can cause system instability. traces of it—including old drivers
: If you're installing Kaspersky on a Windows Server system, a physical keyboard must be connected during installation. Plug one in and restart the installation.
By following these steps, you should be able to resolve the error and successfully install your Kaspersky software to keep your system fully protected.
If you have previously installed and then uninstalled a Kaspersky product, traces of it—including old drivers, registry entries, and configuration files—may remain. These leftovers can confuse a new installation attempt, leading to a conflict when the installer tries to manage the same driver.
