A clean install of Windows 7 is the best way to start off with a fresh copy of the operating system. It’s also the best way to get rid of any problems that may be causing your computer to run slowly. Here’s how to do a clean install of Windows 7 without a CD.

1. Backup your files

The first thing you’ll want to do before starting a clean install of Windows 7 is to backup your files. This way, if anything goes wrong during the installation process, you’ll still have your files to fall back on. There are a …