Windows 10 build 19645

10.0.19645.1.mn_release.200605-1502
Build of Manganese
Screenshot
OS familyWindows 10 (NT 10.0)
Version number10.0
Build number19645
Build revision1
Architecturex86, x64, ARM64
Build labmn_release
Compiled on2020-06-05
Expiration date
Timebomb2020-07-31 (+56 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
VirtualBox Windows 10 build 19645 20 09 2020 15 40 20.png
TCB.png TCBGallery.png

Windows 10 build 19645 is the twenty-second Insider Preview build of Manganese, the 20H2 development semester of Windows as a service. It was released to Windows Insiders in the Fast Ring on 10 June 2020 as the final build from this semester, since the next build moved builds on the then-renamed Dev Channel to the Iron semester.

Changes[edit | edit source]

  • Changed the servicing model for WSL2 distros. As a result of this change, the Linux kernel was removed from the Windows image. From this build onwards, it is now serviced via Windows Update in a similar matter to how third-party drivers like graphics and touchpad devices are installed and updated.
  • Added support for nested virtualization on AMD processors.

Bugs and quirks[edit | edit source]

  • The update process to this build has a chance of hanging for extended periods of time.
  • Both the documents and downloads sections in the privacy settings have broken icons, and as such, rectangles show up where the icons are intended to be instead.

Gallery[edit | edit source]

External links[edit | edit source]