Official support for Windows 7 ended on January 14, 2020 . While these community-made ISOs include newer updates, using an unsupported OS increases your risk of malware and exploits.
A compression format used by Microsoft to make the installation files smaller and easier to download.
Indicates that the creator integrated all official Microsoft security updates and patches up to November 2022 into the image. Important Considerations
Downloading Windows from third-party sites is often considered piracy , even if you have a valid key, as the distribution is unauthorized. Windows 7 SP1 X64 OEM ESD Feb 2016 | PDF - Scribd
These files are not provided by Microsoft. Modified ISOs can potentially contain malware or hidden scripts. Experts generally recommend using official sources like the Microsoft website for downloads, which requires a valid product key.