It used to be that when you wanted to re-install your Windows or install DOS you would have to go through a lengthy process that involved putting your installation to an ISO file, buying a new DVD and burning it in there. Now, however, a lot of the new desktops and laptops do not even have an optical drive. In addition to that, installing from a USB is by far safer, faster and more convenient. Today we will show you how to do that by using a very neat little free application called Rufus.
First of all you will need to download Rufus and copy it on your hard drive or flash drive, if you desire. Rufus requires no installation so you just have to run it. For any question about the application itself you can browse its webpage and the FAQ. By now you should have the program up-and-running so it is time to insert your USB in your computer. Keep in mind that this process will erase any data you have on your flash drive so if you want to keep them, create a backup and store it somewhere else. You can, however, move any file you want to the USB drive after Rufus is done with it so that you can use it later.
If you want to install DOS then you will be fine with the default options of Rufus. The developer recommends FreeDOS over MS-DOS but you can choose whichever one you like and simply press on the Start button. The whole process is extremely fast and Rufus has both of those systems so you do not have to download anything else.
If you want to install a different operating system then you will have to click on the drive/disk icon in order to browse your computer for the ISO file of the operating system you want to install. This process will take a bit more time but it is still the fastest utility out there. If you are unsure about the safety of your drive you can choose the option to check the device for bad blocks.
When you restart your computer with the bootable USB on it then you should see the installation window and proceed with it normally. However, you might have to go to your BIOS settings and change the boot order.