Operating System Beta, etc. Wiki
Windows 10 Manganese
Architecture x86, x64, ARM64
SKUs Home
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
BIOS date 2020-05-22 (Compiled)
Key This build accepts Windows 10 license keys.
Timebomb 2020-07-31 (+70 days)

Windows 10 Build 19635 is the twentieth Insider Preview Build of Manganese. It was released on 2020-05-28 to all Insiders in the fast ring.


  • Fixed an issue resulting in the apostrophes in the Location not available dialog, Mount File dialog, and File Explorer folder options text not being displayed correctly.
  • Fixed an issue where the Work or School account > Allow Windows Search to provide... toggle under Search Settings could be unexpectedly disabled.
  • Fixed an issue resulting in cellular data not working on certain devices.
  • Fixed an issue that could result in Settings crashing when changing display orientation or resolution.
  • Fixed an issue resulting in some Insiders seeing a large number of “Program Compatibility Assistant Service stopped working” critical events in Reliability Monitor.
  • Fixed an issue that could result in constant display flashing on certain devices.
  • Fixed an issue with the camera on certain devices showing unexpected artifacts.

Bugs and quirks

  • Both the Documents and Downloads sections under privacy settings have a broken icon, and a rectangle is shown in their place.
  • Taskbar preview thumbnails do not render consistently in this build (showing a blank area).
  • Some devices may BSOD upon resuming from hibernate if booting from eMMC storage.