Get Your Hands on Windows 11 25H2 Insider Preview ISOs (Build 26200.5074)
Microsoft just dropped the Windows 11 25H2 Insider Preview ISO images for Build 26200.5074. If you’re part of the Insider Program and want to test upcoming features on a clean slate or in a VM, here’s what you need to know.
Why 25H2 Feels Like a Breeze to Install
Windows 11 25H2 and 24H2 share the same servicing branch. That means all the new 25H2 code lives—disabled—in the monthly updates for 24H2. When you install the tiny enablement package (eKB) and reboot, the features simply turn on without a full feature update stick around.
Benefits you’ll notice:
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Smaller update downloads (SSU + LCU combined)
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One-restart feature enablement
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Faster, more reliable servicing via the shared servicing branch
Who Should Grab These ISOs
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Insider testers looking to spin up fresh VMs or test PCs
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IT pros validating apps and policies against the next Windows release
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Anyone wanting a clean install without first updating to 24H2
If you’re on a build older than 24H2, you’ll need to update to 24H2 first—only that version supports the eKB upgrade path to 25H2.
How to Download Your ISO
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Sign in at the Windows Insider Preview Downloads page with your Insider account.
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Scroll to Windows 11 Insider Preview and pick Version 25H2 (Build 26200.5074) from the list.
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Choose your language and download the x64 ISO.
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Mount it or create a bootable USB with your favorite tool.
Upgrade vs. Clean Install Paths
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To go from 24H2 to 25H2, just use Windows Update or deploy the 25H2 eKB. No full reinstall needed.
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If you’re on pre-24H2, update to 24H2 first via Windows Update or Autopatch, then apply the enablement package.
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For a fresh start, boot from the 25H2 ISO and install from scratch.
Grab the ISOs now to see what’s coming in Windows 11’s next big update—and enjoy faster, smoother feature rollouts.
