Conflicting drivers are a prime suspect. Use the uninstaller of any other security product, then run its vendor’s removal tool (e.g., McAfee Consumer Product Removal tool, Norton Removal Tool). Reboot afterward.
Corrupted OS files can block driver registration. kaspersky error 27300 klif.sys-x64
If the installation files were downloaded incompletely or extracted to a temporary folder that was cleared, the klif.sys file might be corrupted or digitally unsigned, causing Windows to block the installation. Conflicting drivers are a prime suspect
No, it also affects Windows 11, Windows Server 2016/2019/2022, and even Windows 8.1 (though klif.sys-x86 on 32-bit systems). McAfee Consumer Product Removal tool