Windows 10 Insider Preview Build 10074 Now available Windows Update's

Microsoft has just launched a new build of its Windows 10 Technical Preview, with the version number 10074. Anyone who has enrolled in the Windows Insider Program and are in the Fast Ring should be able to download the new build.

What's new in the Windows 10 Insider Preview build 10074?

Windows will update from version 10.0.10061 to 10.0.10074 after launching this update.

Cortana is now integrated into start
Cortana's height is now variable to start
The Cortana icon is now smaller to match the start button
The search field, when disabled, will no longer cover the taskbar when opening the start menu, searching by typing is still possible
The search field now appears in the start menu when not enabled on the taskbar
When in fullscreen, the groups are verticaly centered
You can now make up to 5 columns of groups
Start can now be set to use a blur
There are new Tile animations
Live Tiles can now be disabled
When tablet mode is enabled, the Windows, Search/Cortana and Task view icons get bigger (the actual icons, not just the space arround them)

There is a new sound control
Some of the sounds have been renamed
The personalization settings have been removed from the Control Panel (except for themes)
"Personalize" in the desktop context menu now opens the Settings app
You can now enable "Battery saver" or change the brightness from the "Battery status" icon in the taskbar

Getting started
- Gettings started has a new tile icon (which appeared on the splash screen in 10061)
Settings
- The category icon is now shown next to the back-arrow
- Some icons have been changed
- The list of default accent colors has been changed
- Update & back-up has been renamed Update & security
- Windows Defender settings are now also displayed under Update & security

This build indicates the first build in the Insider Preview series instead of the Technical Preview
The installation now says "Installing Windows" rather then "Installing Windows 10 Technical Preview"

Source: Microsoft Blog