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A: Some third-party driver updaters or system optimizers incorrectly try to install renamed copies of klim6 . Run a full malware scan using Windows Defender Offline.
Windows has a limit on the number of network filters that can be installed at once; third-party apps like VMware or Cisco AnyConnect can exhaust this limit. Recommended Solutions 1. Perform a Clean Removal of Previous Versions error 27300 error installing driver klim6sysx64 exclusive
Damaged Windows Cryptographic Services or corrupt registry entries. A: Some third-party driver updaters or system optimizers
typically occurs during the installation of Kaspersky software when the system fails to install the klim6.sys driver , which acts as a packet network filter. This failure is often caused by leftover drivers from previous security software, corrupted system files, or conflicts with other network-filtering applications like VMware or Cisco AnyConnect. Common Causes Recommended Solutions 1
The error code essentially means the installer cannot register the network filter driver because:
Searching public driver databases (Microsoft Update Catalog, DriverGuide, etc.) yields for klim6sysx64 .
Error 27300 (specifically involving the driver klim6.sys_x64_70_exclusive