CSM enables legacy BIOS compatibility with UEFI systems. It allows UEFI to boot from MBR-partitioned disks. CSM is a component of UEFI firmware
BIOS access is essential for computer settings and performance optimization. Common issues include incorrect BIOS key presses, faulty CMOS battery, or hardware problems. BIOS can fail due to power failure, malware, or accidental BIOS damage
BIOS is the core processor software responsible for PC startup. BIOS runs Power-On Self Test (POST) to check hardware functionality. BIOS stores settings in CMOS memory chip. BIOS manages data flow between operating system and hardware
Press F2 or FN+F2 repeatedly during startup to enter BIOS. Linux users should press F1 instead. Windows users need to restart from Windows to access BIOS
Enter wrong password three times to lock computer. Write down "System Disabled" code. Visit bios-pw.org to generate backdoor password. Try stock BIOS passwords if available
Type "wmic bios get smbiosbiosversion" in Command Prompt. Use "Get-WmiObject win32_bios" in PowerShell