Windows 8.1 is the latest version of Windows operating system released by Microsoft. Even though Windows 8.1 is a great operating system, sometimes you may need to format your computer and start fresh. This can be done without having to use the original installation disc.

The best way to format Windows 8.1 without a disc is to use a USB drive. First, make sure you have a USB drive that is at least 4GB in size. Next, download the Windows 8.1 installation files from Microsoft’s website. 

Once you have the installation files, create a new folder on your USB drive …