With ubuntu live usb bootable ubuntu you can access via usb flasdisk and highly portable, at the time on the computer system there are problems we can still access the computer using a usb bootable ubuntu. download: Download Ubuntu Live Imager you can find it easily using google.

LiLi USB Creator is a free software run in Windows  to create a bootable Live Linux USB key. This software also offers an exclusive option of automatic virtualization to directly run Linux in Windows without any configuration nor installation. Download here