Hello! If you are looking for a way to download bootable versions of Windows 7 and 10 for free so that you don't have to pay for formatting your computer, there are a few options you can consider:
1. Microsoft Software Download: Microsoft offers official ISO files for Windows 7 and Windows 10 on their website. You can download these ISO files and create a bootable USB drive using tools like Rufus or the Windows USB/DVD Download Tool.
2. Third-Party Websites: There are various third-party websites that offer Windows ISO files for download. However, you should be cautious when using these sites as they may not always provide legitimate or safe downloads. Make sure to scan the files for malware before using them.
3. Torrent Sites: While downloading Windows ISO files from torrent sites is not recommended due to the risk of malware, you may find bootable versions of Windows 7 and 10 on these platforms. Exercise caution and verify the authenticity of the files before using them.
Remember, it's important to ensure that you are downloading Windows from a legitimate and trusted source to avoid any security risks. Additionally, make sure you have a valid license key to activate Windows once you have reinstalled it on your computer.