If the error persists, proceed to the structured resolution steps below.
A notable success story comes from a user on the Kaspersky Beta forum who was blocked by Secure Boot. They used the free tool "Tweaking.com Windows Repair" in Safe Mode to repair all issues with their Windows 10 system. After this deep system repair, a restart, and a fresh installation attempt, they succeeded in installing Kaspersky.
| Error Code(s) | Primary Solution | | :--- | :--- | | -2147024891 (0x80070005) | Temporarily disable Driver Signature Enforcement or Secure Boot. | | -2147416359 (0x8000ffff) | Likely a system file corruption issue. Run the command and repair Cryptographic Services. | | 2147024770 (0x80070002) | Clean up all previous Kaspersky traces using the kavremover utility. | | 2146500025 | Temporarily disable Driver Signature Enforcement. This error is specific to the klim6.sys driver. | | 2147023673 | Download and install the latest version of your Kaspersky product. The issue has been fixed in newer builds. | | 2147024883 | Modify a registry key (for Windows 7/8). Rename the Config parameter under HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Network to Config2 and restart. |
A: Yes. The error appears on Windows 11, Windows 10 (1809+), Windows Server 2016/2019/2022 (all 64-bit). kaspersky error installing driver klim6sys x64 upd
Common error messages include:
Corrupted or partially uninstalled network filter drivers from previous security software (e.g., Sophos, McAfee) cause direct conflicts.
Error 27300 when installing a Kaspersky application for home If the error persists, proceed to the structured
Press Win + S , type cmd , right-click , and select Run as administrator .
This issue is more common than you might think. The klim6.sys file is a critical low-level system driver (part of Kaspersky’s Anti-Virus and Anti-Rootkit protection). Without it, your Kaspersky product will not function correctly, leaving your system vulnerable.
: Ensure your Windows is fully updated. If updates are restricted, manually update the root certificates to ensure the installer's digital signature is recognized. Proactive Troubleshooting If these steps do not work, check your Base Filtering Engine (BFE) service in services.msc After this deep system repair, a restart, and
Virtual network adapters created by software like VMware, Cisco AnyConnect, or WinPcap block new NDIS filters from attaching. Step-by-Step Fixes for Error 27300
Once Windows boots, run the Kaspersky installer as an administrator immediately. 5. Reset the Windows Network Stack
If nothing works, the Windows driver store may be irreparably corrupted. An in-place upgrade (repair install) fixes this without deleting your apps.
Ensure your system files are up-to-date:
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