When you download a Windows 10 ISO, you are downloading a complete, bootable image of the operating system, with the Windows kernel at its very core. This image contains all the system files you need to install or reinstall the OS from scratch. The is your gateway to this complex, powerful system.
To guarantee that your downloaded ISO has not been modified, infected with malware, or corrupted during transit, verify its cryptographic hash value prior to deployment. Step-by-Step SHA-256 Verification kernel os windows 10 iso link