No, you don't require access to the BIOS to install Windows 10.
No, you don't require access to the BIOS to install Windows 10.
Only when adjustments are required—such as changing the SATA controller from Native IDE to AHCI—or when resetting the TPM before reinstallation (a setting unrelated to your situation)—should you proceed. If you're unsure about TPM, it doesn't affect this process.
Another frequent issue is configuring the system in Legacy mode instead of UEFI, which is better suited for Windows 8 and newer versions.