There[SQ]s no official Microsoft product called "Windows All (7, 8.1, 10)". That[SQ]s not a legitimate Windows version. It[SQ]s likely a misleading or inaccurate name used in an unofficial context, perhaps :

* A pirated or bundled collection:

Someone might be offering a collection of illegally obtained Windows 7, 8.1, and 10 installation files under that name. This is highly illegal and carries significant risks of malware and legal repercussions.
*

A mislabeled product:

A legitimate software vendor *might* be using this name incorrectly or confusingly to describe software that works *with* multiple Windows versions, but it would be improper naming.
*

A misunderstanding:

Someone might be using that phrase to informally describe software or a setup that[SQ]s compatible with those Windows versions.


In short, if you encountered this phrase, treat it with extreme caution. Do not download or use any software claiming to be "Windows All (7, 8.1, 10)" unless it comes directly from a reputable and trustworthy source like Microsoft. Stick to legitimate channels for acquiring Windows operating systems.