Windows 10 build 9845

Windows 10 build 9845 is a Technical Preview build of Windows 10. It was initially shared to the public as an x64 version in the Japanese language on 2 July 2015, followed by x86 versions and other languages on 19 September 2015.

This is the last build to be released to Microsoft partners participating in the Ecosystem Engineering Access Program (EEAP), as indicated by the  branch. All later available Windows 10 builds up until the RTM (excluding build 9907 (fbl_ie) and build 10176) are flight-signed builds and have a timebomb hardcoded into the system.

New login screen
A new UWP login screen has been added to this build, but it is disabled by default.

zPC settings
In addition to the usual computer settings "PC settings" there is also a “zPC settings”. It also contains settings such as "OEM " and "Pending or Deprecated” (literally translates to indefinite and obsolete), and judging by the various words inside, it contains a lot of banter.

Other changes

 * Snap assist has received a small change.
 * CloudExperienceHost app has been added, but it is hidden.
 * Fixed a bug with pop-up text in the jump list.

Timebomb
Like other builds found in the  branch, this build uses a test-signed certificate and as a result can be installed on the current date. However, installing this build on the current date disables the ability to change the desktop wallpaper in the Control Panel.

Power options
The power options in the start menu and login screen are not functional in this build. In order to shut down or restart, it has to be done by right-clicking on the Start button or through the ⊞ Win menu. Alternatively, run either of the following commands through a command prompt or the Run dialog:
 * to shut down the system
 * to restart

PC settings
The normal PC Settings application does not start in this build. However, the zPC Settings application starts normally.

Improper Metro effect rendering
This build does not properly render Metro effects and will often display visual artifacts.

error during shutdown
When the system shuts down, a memory access error related to  may occur.

Window thumbnail border color error
If window auto-colorization is enabled, the window thumbnail borders on the taskbar do not change color even after the wallpaper changes. This issue can be remedied by manually changing the window color through the Control Panel or restarting Windows.

Translation
Certain strings in the German and Japanese language versions of this build are either not properly translated or retain their English variants.