This is the standard method for Windows users. The MCT automatically applies high-level compression (using the .esd format) to help the installer fit on a standard 8GB USB drive.
The official and most secure way to obtain a file is through authorized Microsoft channels. While third-party sites often advertise "highly compressed" versions, these files typically carry significant security risks and may lack the integrity of an original image. Official Download Methods for Windows 10 ISO download windows 10 64 bit iso file highly compressed new
Third-party "highly compressed" ISOs (sometimes as small as 1GB or 2GB) are often modified by removing system files, drivers, and security features. This is the standard method for Windows users
Removing core components to save space can cause crashes, broken Windows Updates, and hardware compatibility issues. If you access the download page from a
If you access the download page from a non-Windows device (like a Mac or Linux machine), Microsoft provides direct links to the ISO. These files are usually larger because they use the uncompressed .wim format, which is better for IT administrators creating custom images. Why "Highly Compressed" ISOs Can Be Risky