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  • Windows can’t be installed because this PC uses a compressed operating system.

    Posted on January 24th, 2015 at 06:43 Comment on the AskWoody Lounge

    I know, it’s frustrating.

    If you’re trying to install the latest Windows 10 build on a Windows 8.1 machine, you may be greeted by that notice. I got it while trying to put build 9926 on a brand new Asus Transformer.

    The culprit? WIMboot. It’s a Microsoft technology that squeezes Windows into a smaller footprint, so Windows can essentially boot from a compressed image. That’s great for cheap machines, but it doesn’t play well with the Windows 10 installer.

    I haven’t found any workaround. After trying for an hour to install 9926 directly from a UEFI-enabled USB drive, I finally gave up. Sorry, Rufus. No luck.