Windows 10 build 10036

Windows 10 build 10036 is a build of Windows 10. The build was originally selected as a candidate to be released to Windows Insiders, but was not made public due to certain bugs that severely impacted the usability of the operating system. It was eventually shared on OSBetaArchive on 14 March 2015.

New features and changes

 * The new upgrade screen has been introduced, although it says "Installing Windows" instead of "Upgrading Windows" like the RTM.
 * Several design tweaks have been made to the Start menu.
 * The design of controls and toggles have been updated in the Settings app.

Removed features

 * This is one of the first builds to remove the   registry key to restore the old DirectUI-based start menu. It is still present, as seen in Windows Server 2016 build 10036, however different means must be used to enable it (such as manually patching the server SKU check). The functionality itself was not stripped out until the later stages of the development phase of Windows 10 November Update.

Bugs

 * The People, Mail, and Calendar applications fail to launch in this build as they do not install properly.
 * Opening a folder on the Start menu with sufficient items within it and then closing it again will cause its backend to crash, preventing access to the Start menu for a specific period of time.