is a native Windows Installer (MSI) error that typically indicates a kernel-mode driver installation failure. When paired with the string "exclusive" and the driver name klim6sysx64 , this report confirms a critical conflict: the Windows operating system cannot overwrite, replace, or register the driver because a running process, security service, or the driver itself has an exclusive lock on the target system file or registry path.
Elias froze. The error code 27300 in the proprietary manual meant "Exclusive Hardware Lock." The driver couldn't install because the hardware itself was refusing to accept the software handshake. error 27300 error installing driver klim6sysx64 exclusive
Corrupted system files are a leading cause of driver installation failures. System File Checker sfc /scannow in an elevated Command Prompt. is a native Windows Installer (MSI) error that
Try the installer again, right-clicking it and selecting . Summary Checklist Did you run kavremover in Safe Mode? Did you delete hidden drivers in Device Manager? Did you reset the network stack via Command Prompt? The error code 27300 in the proprietary manual
: Residual files from a previous installation often block the new driver. Download the official Kaspersky removal tool (kavremover) to completely wipe old traces before retrying the install. Download the Latest Version
If multiple engines detect it as malicious, delete it.
If the error persists, Windows Security is likely blocking you.