why is windows 7 ultimate better than professional? - Microsoft Learn

: Even though public support had ended, Microsoft continued to release security patches for big corporations through a paid program called Extended Security Updates (ESU) . Modders found ways to "slipstream" these exclusive enterprise-only updates into standard consumer versions like Windows 7 Ultimate .

Are you looking to , or are you more interested in the history of custom Windows builds ?

The "June 2020" release is an "All-in-One" (6in1) package. Here is why it became an interesting piece of digital folklore: