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October 23, 2021

How-to: Grab Latest Win10 Insider ISO

When Microsoft pushed out its Cumulative Updates last week on Patch Tuesday (June 11), it pushed out a few other things, too. Though the company does occasionally make new Windows Insider ISOs available, it does so on no schedule that I can discern. Sometimes you’ll get one and sometimes you won’t. That’s why keeping up on related news is a good idea. But you can also visit the Microsoft Software Download pages, where you’ll find one called “Windows Insider Preview Downloads.” To grab such files, you must first sign up for the Windows Insider program (you can do that on any Windows 10 PC, through Start → Settings → Update & Security → Windows Insider Program. When you visit the afore-linked ISO download page, you’ll have to sign in with a valid Windows Insider account before you will be allowed to access and download such files.

The Windows Insider Preview Download Page is the Thing!

Once you get to that page, scroll down until you see the “Select edition” heading. Beneath, there’s a pick list item that when selected shows a list of eligible Windows Insider editions that you may download. Here’s a screen cap of what’s available on June 17, as I write this story:

Grab Latest Win10 Insider ISO.list

The Build numbers for ISOs shown are FAST 18912 and SLOW 18343, among others.
[Click image for full-sized view.]

Please note that the “latest Windows Insider ISO” and the “most current Insider Build” are only seldom identical. In fact, they seldom coincide for more than a week for FAST ring builds (that’s its current release frequency), or more than a month for SLOW ring builds (ditto). Thus, you’ll want to check the Windows Insider Program blog (where you will always find posts that identify the most current builds) to compare them with the ISO build numbers available through the Insider Preview Downloads page.

And in case it wasn’t already obvious, that’s why news regarding a new Insider ISO release is worth looking (and waiting) for. That’s the best way to find out when Microsoft changes the files available for download there. Enjoy!

Author: Ed Tittel

Ed Tittel is a 30-plus-year computer industry veteran. He’s a Princeton and multiple University of Texas graduate who’s worked in IT since 1981 when he started his first programming job. Over the past three decades he’s also worked as a manager, technical evangelist, consultant, trainer, and an expert witness. See his professional bio for all the details.

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