Sure, I can help with that! You can download the official Windows 10 ISO file directly from Microsoft's website. Here are the steps to get it:
1. **Go to the Microsoft Windows 10 download page**: [Microsoft Windows 10 Download](https://www.microsoft.com/software-download/windows10)
2. **Download the Media Creation Tool**: Click on the "Download tool now" button. This tool will help you create a bootable USB drive or download the ISO file.
3. **Run the Media Creation Tool**: Once downloaded, open the tool and follow the instructions.
4. **Choose "Create installation media"**: Select this option to download the ISO file.
5. **Select your preferences**: Choose the language, edition, and architecture (32-bit or 64-bit).
6. **Choose "ISO file"**: When asked to choose which media to use, select the ISO file option.
7. **Download and save the ISO file**: The tool will download the ISO file to your computer. Make sure you have enough space on your hard drive.
Once you have the ISO file, you can use it to create a bootable USB drive or DVD to install Windows 10 on your PC.
If you have any more questions or need further assistance, feel free to ask!