Windows 10 build 20279

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Build of Windows 10 Iron
OS family
Architecturex86, x64, ARM64
Timebomb2021-10-31 (+326 days)
Works in
20279 winver.png
Home China
Home N
Home Single Language
Pro N
Pro Single Language
Pro China Only
Pro Education
Pro Education N
Pro for Workstations
Pro N for Workstations
Education N
Enterprise Evaluation
Enterprise G
Enterprise G N
Enterprise multi-session
Enterprise N
Enterprise N Evaluation
IoT Enterprise
Use a Windows 10 Retail serial
TCB.png TCBGallery.png

Windows 10 build 20279 is the twenty-fifth Insider Preview build of Iron. This build was released on 14 December 2020 to all Insiders on the Dev Channel who opted to receive builds from the fe_release branch as the last officially released from this cycle for desktop, since the next build moved all Dev Channel Insiders to receive builds from the Cobalt cycle. Builds after this one, however, exist on other platforms such as Windows 10X, the Server counterpart and in the form of Docker layer images.

Bugs[edit | edit source]

  • Live preview doesn't work for pinned site tabs on some machines.
  • Some users are seeing error 0x80070426 when using their Microsoft account to sign into various apps. Restarting usually fixes this.
  • The modern Disk Management page (SettingsSystemStorage → Manage Disks and Volumes) in the Settings app is blank, as a result, it won't display any drives present. To workaround this issue, use the classic Disk Management tool to manage disk drives.

Gallery[edit | edit source]

External links[edit | edit source]

Official announcement