Windows 10 build 20215

10.0.20215.1000.rs_prerelease.200911-1500
Build of Iron
Screenshot
OS familyWindows 10 (NT 10.0)
Version number10.0
Build number20215
Build revision1000
Architecturex86, x64, ARM64
Build labrs_prerelease
Compiled on2020-09-11
Expiration date
Timebomb2021-01-31 (+142 days)
SKUs
Home (N, Single Language, China)
Pro (N, Single Language, China)
Pro Education (N)
Pro for Workstations (N)
Education (N)
Enterprise (G, N)
Enterprise Evaluation (N)
Enterprise multi-session
IoT Enterprise
Team
Product key
Use a Windows 10 Retail serial
About dialog
Win10 20215 winver.png
TCB.png TCBGallery.png

Windows 10 build 20215 is the thirteenth Insider Preview build of Iron, the 21H1 development semester of Windows as a service. This build was released to Windows Insiders in the Dev Channel on 16 September 2020.

Changes[edit | edit source]

  • The search results on the taskbar's search experience now support the dark theme.

Bugs[edit | edit source]

  • The update process to this build has a chance of hanging for extended periods of time.
  • Live preview doesn't work for pinned site tabs.
  • Some Office applications may either crash or go missing after updating to this build.
  • There's a chance of the Settings app crashing when opening Manage Disks and Volumes.
  • There's a chance of randomly encountering a BSOD with the error code KMODE_EXCEPTION when using certain virtualization technologies.
  • The Linux kernel is not installed when running wsl --install in the Windows Subsystem for Linux. To workaround this issue, run wsl --update to the latest kernel version.
  • Sometimes, when starting up a WSL2 distro, there's a chance of randomly encountering the error “The remote procedure call failed”.
  • The vEthernet adapter used in WSL2 distros can randomly disconnect itself after a certain period of time.
  • Generic errors may be displayed while installing WSL through wsl --install.

Gallery[edit | edit source]

External links[edit | edit source]