My understanding from what I've read on numerous sites is that while yes, you can install Windows 10 from the downloaded ISO file, if you want the free upgrade, you must first do the in place upgrade (not a clean install). Once you have done that and logged in and registered with Microsoft's registration server, then you can do a clean install, because now Microsoft knows the signature of your computer and has assigned a Windows 10 license to it.

If you try to do a clean install with the downloaded ISO, then it's going to ask you for a Windows 10 license key (which you won't have, because you didn't buy it).

I've seen this information on numerous sites, but it could be wrong. I'm sure some folks will try it and we'll hear their reports back.

For me, I left both my computers doing a system drive image this morning to be able to revert back quickly if I need to, so I should be able to try to upgrade either tonight or tomorrow. We'll see how it goes.

By the way, the files it downloads in the background (if you clicked on the "reserve my copy" icon) will take up 6 GB of C: drive disk space.

John

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Desktop-ASUS-I7 Win10Pro 32GB 2x1.5TB, 2x2TB, 1x4TB SATA

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