Answer: bootstrap

AnswerCrossword Clue
BOOTSTRAPItem for a certain lift
BOOTSTRAPSelf puller-upper
bootstrapThe technique of starting with existing resources to create something more complex and effective
bootstrapto prepare (a computer) for operation by causing an operating system to be loaded into its memory
bootstrapA loop at the back of a boot, used to pull it on
bootstrapA technique of loading a program into a computer by means of a few initial instructions that enable the introduction of the rest of the program from an input device