In addition to CD/DVD/USB you can choose to save ESET SysRescue in an ISO file. Later on, you can burn the ISO image on CD/DVD, or use it some other way (e.g. in the virtual environment such as VmWare or Virtualbox).
If you select USB as the target medium, booting may not work on certain computers. Some BIOS versions may report problems with the BIOS – boot manager communication (e.g. on Windows Vista) and booting exits with the following error message:
file : \boot\bcd
status : 0xc000000e
info : an error occurred while attemping to read the boot configuration data
If you encounter this message, we recommend selecting CD instead of USB medium.