Download the .iso of a verified tool (Hiren's is easiest). Use Rufus (also verified open-source) to write it to a USB stick. Select "DD Image" mode if Rufus prompts you.
: It supports a wide range of legacy and modern BIOS architectures, including AMI, AWARD, Phoenix, Compaq, and IBM (Thinkpad). pc cmos cleaner 20 usb boot verified
are crucial for three reasons: