"No effect when pressing F2"
No effect on pressing "F2" / Complete absence of audio signals.
Problem: Core Isolation is activated during the Windows boot phase. Simply disabling protection modules within the antivirus interface (Kaspersky, Avast, Dr.Web, Malwarebytes, etc.) will not solve the issue, as low-level security drivers remains active in the system.
The primary cause is third-party security software that takes over virtualization and security management functions.
Open the Core Isolation settings in Windows 10/11 (you can find it in the "Windows Security folder")
Disable the "Memory Integrity" feature in the "Core Isolation" tab
Completely uninstall any third-party antivirus software: "Kaspersky," "Avast," "Avira," "360 Total Security," "Dr.Web," "Avast", "Eset32".
Restart your PC and try again
If the problem persists after a reboot, scan your PC using https://antivirus-removal-tool.com/ and make sure no antiviruses or leftover files remain in the system.
Attention! If you have removed Windows Defender and cannot disable core isolation, please use a .bat file for automatic core isolation disablement.
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