Windows 10 build 18836

10.0.18836.1000.rs_prerelease.190208-1649
	Build of Windows 10 May 2020 Update
OS family	Windows 10 (NT 10.0)
Version number	10.0
Build number	18836
Build revision	1000
Architecture	x86, x64, ARM64
Build lab	rs_prerelease
Compiled on	2019-02-08
Expiration date
Timebomb	2019-07-05 (+147 days)
SKUs
	Home (N); Pro (N)
Product key
	Use a Windows 10 Retail serial
About dialog

Windows 10 build 18836 is the first Insider Preview build of Windows 10 May 2020 Update. This build was released to Windows Insiders that were opted into Skip Ahead on 14 February 2019.

New features[edit | edit source]

General[edit | edit source]

Renamed the "Windows Light" theme to "Windows (light)".
Added the ability to access Linux files in a WSL distro from Windows. They can be accessed through the command line and other Windows apps such as File Explorer. Navigate to \\wsl$\<distro_name> to access them. You can also see a list of running distributions by navigating to \\wsl$.
Added some new features to the wsl.exe command line interface, such as the ability to import and export distros and consolidating the existing features from wslconfig.exe, such as listing installed distros and setting defaults.
The new tamper protection setting in the Windows Security app protects user's device by helping to prevent bad actors from tampering with the most important security settings. The setting is designed to be on by default, however the default state is not currently in effect for current Insider Preview builds. User may see a new recommendation in the Windows Security app suggesting them turn this setting on.

Bugfixes[edit | edit source]

Fixed an issue where turning off Location from the Action Center might take multiple clicks to react.
Fixed an issue resulting in being unable to re-arrange pinned folders in Start’s tile grid.
Fixed an issue where newly installed apps might not show up in search results.
Fixed an issue resulting in some users not being able to open Cortana when in Tablet Mode.
Fixed an issue from the previous build where right-clicking the desktop would bring up a light colored context menu in dark theme.
Fixed an issue where Cortana’s icon on secondary monitors wouldn’t update colors after switching between light and dark theme.
Fixed an issue where when using light theme + small icons + a vertical taskbar orientation, text written on the taskbar would stay white and thus wouldn’t be readable.
Fixed an issue that could result in open apps not being shown on the taskbar (but being visible in Alt+Tab).
Fixed an issue resulting in build unable to log into WinRE with an admin account in the last couple of flights.
Fixed an issue resulting in greys having an unexpected slight pinkish/purple-ish tinge on some devices in recent flights.
Another fix to address reports of devices getting stuck with “Hibernating…” text on the screen on resume from hibernate has been done
Fixed an issue in Ease of Access’s Cursor and pointer settings, mouse pointer size and color are now retained on upgrade.
Fixed an issue where the Windows Security app may show an unknown status for the Virus & threat protection area, or not refresh properly.

Bugs[edit | edit source]

Opening games that use anti-cheat software will trigger a system crash.
While the bug that was causing the built-in night light to not work correctly was fixed in May 2019 Update build 18323, bugs still persist with other blue light reduction software not working.
When using Reset this PC and Keep my files is selected on a device that has Reserved Storage enabled, the user needs to initiate an extra reboot to ensure Reserved Storage is properly working again.
Some Realtek SD card readers do not function correctly with this build.
File Explorer may freeze when trying to rename, delete, or move .MKV files.
If you attempt to navigate to the Narrator settings in Windows Sandbox, the Settings app will crash.
Creative X-Fi sound cards do not function properly on this build.