Vifg files like operating systems can be loaded from a bootable device where you will put an ISO iamge file. Many people now a days have their personal systems that they use for a number of tasks. The computer running slow is one of the major problems faced by them. Most of them experience that their device is slowing down and starts hanging after sometime of use. This makes doing the work difficult and the task which could have been finished in minutes takes hours to complete.