Boot USB from old BIOS to format your PC

Now here are the steps.

1. First download

2. Extract the files and copy plpbt.bin and plpgenbtldr.exe to your c:\ directory.

3. Launch Command Promp. Click Start>Run> type cmd

4. Change to C:\ directory by typing CD\ and hit enter.

5. Now type plpgenbtldr, hit enter and you will see a few lines of debug infos on the screen. Most importantly is at the end where it should say “plpbtldr.bin created”. Type anything after that.

6. go to start, run cmd then type cd\, then type boot.ini and then add this on the last 

c:\plpbtldr.bin="Start PLoP Boot Manager"

Restart your computer and you should see new option there which says start Plop Boot Manager, then select usb to boot.