: This stands for Service Pack 1, which is a major update for Windows 7. It was released on February 22, 2011, and includes many updates, improvements, and fixes for the operating system.
: Windows 7 has had its extended support ended by Microsoft. This means there are no more security updates or support from Microsoft. windows 7 sp1 x64 11in1 oem esd ptbr march 202 verified
: This refers to the compression format ( install.esd ) used for the Windows installation files. ESD files are more highly compressed than standard install.wim files, allowing multiple Windows editions to fit onto a single standard DVD or smaller USB drive. : This stands for Service Pack 1, which
The ISO contains 11 different editions of Windows 7, typically including Home Basic, Home Premium, Professional, and Ultimate. This means there are no more security updates
"Verified" usually refers to the file's integrity being checked via SHA-1 or MD5 hashes to ensure the file was not corrupted during download.