Microsoft released Windows 10 build 10074 last week after the inaugural keynote speech of the BUILD 2015 developer conference. 
The company immediately after its official release appears to have focused on bug fixes and improvements to this new release.
So today, users who have already installed build 10074 can update their system with several enhancements and bug fixes.
The updates were announced by the company in the bulletin Windows 10 Insider Preview Update Rollup for April 2015.
In addition to the necessary improvements, Microsoft is also launching a new feature. Windows 10 build 10074 update also brings Dolby Digital Plus codecs.
Codecs are also available in Windows 8 and Windows RT.
The Dolby Digital Plus codec, often referred to as Enhanced AC3, allows a 5.1-channel surround sound system to be used throughout operating system, not only from the applications surfaceς εργασίας, αλλά και από τις εφαρμογές του Windows Store .
The same codec was already available in earlier versions of Windows, such as Vista and 7, but with the release of Windows 8, Microsoft and Dolby had to develop a new encoder that could provide compatibility with Windows Store applications, in addition to desktop software.
For the Windows 10, the Dolby Digital Plus encoder is available with updates to 10074.
