Untested Windows 10 build 18947 mistakenly pushed to Insiders on all rings

Microsoft Surface Pro 6
Microsoft Surface Pro 6 (Image credit: Windows Central)

What you need to know

  • An untested build of Windows 10 is being pushed out to Insiders on all rings.
  • Reports claim that 32-bit and 64-bit systems are receiving the build.
  • Insider chief Dona Sarkar says that Microsoft is looking into it.

Updated July 24, 2019: Microsoft has acknowledged the unintentional release of build 18497, detailing steps to roll back for those who may have been offered the download. Microsoft recommends any who installed the build roll back to their previous build as soon as possible. The original story follows.

A version of Windows 10 20H1 that hasn't been tested internally was mistakenly pushed to Windows Insiders in all rings today. Windows 10 build 18947 is a canary build that is only a day old. Reports are appearing around the web that the build is appearing on 32-bit and 64-bit machines.

A Reddit thread has several users in it that claim the update has rolled out to their machines. Users on Twitter have also pointed out that the update is appearing on 64-bit machines.

Microsoft's Dona Sarkar, chief of the Windows Insider program, stated that Microsoft is "looking into it" in response to a question about the build rollout.

While there are several reports of users seeing the update, we have at least one Insider PC that hasn't seen the update yet. It's yet to be seen how many PCs will see this accidental update. If you're offered build 18947, it's advisable to pause updates to prevent running into any issues.

Portable (and affordable) power accessories we love

Each and every one of these charging gadgets will keep your favorite gear and gadgets going for longer, and none of them costs more than $30.

VisionTek 8,000 mAh micro-USB power bank ($13 at Dell)

This compact dual-output powerbank can speedily recharge any and all your devices, thanks to a two-amp "fast charge feature," using its micro-USB out port. Its simple design includes an LED indicator, and it costs about as much as a single ticket to the movies.

Panasonic eneloop AA batteries (From $13 at Dell)

Panasonic's rechargeable batteries are among the best available, and just a couple of them will keep your favorite remote, mice or other peripherals powered up when you need them. They're also eco. And the company's affordable charger fits and charges both AA and AAA batteries at the same time.

Belkin Qi Wireless Charging Pad ($30 at Dell)

This unobtrusive Qi wireless charging pad looks good (and kind of like a UFO …) and easily charges all your Qi-compatible device up to 5W. Its LED indicator lights up when you're charging. And it costs just $30.

Sean Endicott
News Writer and apps editor

Sean Endicott brings nearly a decade of experience covering Microsoft and Windows news to Windows Central. He joined our team in 2017 as an app reviewer and now heads up our day-to-day news coverage. If you have a news tip or an app to review, hit him up at sean.endicott@futurenet.com.