Backupper Portable Version: Aomei

If you need information about it:

: Combined with WinPE bootable media , the portable version ensures that even if a computer won't boot into Windows, the data is never truly out of reach. Aomei Backupper Portable Version

You boot the crashing computer from a (like Hiren’s BootCD or Strelec). Inside WinPE, you plug in your second USB that has AOMEI Backupper Portable. Run it, and immediately back up the failing drive to an external HDD. No installation needed inside the WinPE environment. If you need information about it: : Combined