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19H1 Release Preview Bug Bites

I’m running the upcoming Release Preview here at Chez Tittel on a couple of PCs. On one of them — the now-venerable Surface Pro 3 purchased in November 2014 — I found myself bitten by an interesting but well-known bug this morning. I was trying to upgrade to Build 18362.30. It would download from WU, then get into the GUI install. Each time I tried (and re-tried), it would hang at 25%. Eventually it would pop up a Window saying it had to check a few things. Fairly quickly thereafter WU would pop up a “PC can’t be upgraded to Windows 10” error window that explained I would have to wait for another build to try again. Here’s what you’ll see, if the 19H1 Release Preview bug bites one of your PCs:

If you see this warning while trying to upgrade to 19H1, an SD card may be getting in the way.
[Click image for full-sized view. Source:]

If 19H1 Release Preview Bug Bites, Then What?

As explained in this MS Support note,  there may be easy fixes. It’s entitled “This PC can’t be upgraded to Windows 10” error on a computer that has a USB device or SD card attached. Apparently something happens during the upgrade process that causes “inappropriate drive reassigment” (different drive letters, one presumes) vis-a-vis the usual setup. That’s what causes the error message that mentions “keep your Windows settings, personal files, and apps.” If you pop the SD drive (and/or external USB-attached drives, according to some) out and try again, the install runs to completion without difficulty.

That’s how it worked for me anyway. I’m glad I keep up with this kind of stuff (thanks to daily forays at I pretty much recognized the error message and knew what fix to make before trying again. And fortunately, it did the trick! And so it goes, here in Windows World.

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