# Blacklist the problematic driver echo "blacklist tpm_crb" | sudo tee /etc/modprobe.d/tpm_crb-blacklist.conf sudo update-initramfs -u sudo reboot
tpm_crb MSFT0101:00: [Firmware Bug]: ACPI region does not cover the entire command/response buffer. Or simply a failed probe of the TPM device.
Now go forth, banish the yellow exclamation mark, and never think about ACPI MSFT0101 again—until your next BIOS update, anyway. Have a different fix or a horror story about this error? Drop it in the comments below.
If you’ve ever opened Device Manager on a Windows PC (or checked dmesg on Linux) and spotted a ghost device labeled ACPI MSFT0101 with a bright yellow exclamation mark, you’ve likely fallen down a rabbit hole of driver errors and BIOS settings.
Is it malware? A broken chip? A missing driver from 2015?