How to upgrade Windows 10 build 10240?

Microsoft has released a new version of Windows 10, build 10240, which is available for Windows Insider Fast Track and Slow Channel members. It is rumored that this is an RTM (release to manufacturer) version that will be sent to PC OEMs.

Gabriel Aul, head of Windows Insider, wrote:
“ On Monday, we announced that the new version will only be available through Windows Update, and quickly get the version you are waiting for, it will be installed automatically, or enter Settings > Update & Security > Windows Update > Check for updates. Remember that you"ll need to be logged in with your Microsoft Account in order to receive the build."">Start>Settings> Update & Security > Windows Update > Check for updates. Remember, you need to be logged in to your Microsoft account to receive this version.“
“In addition to the new version, in the next 2 weeks, you will See some Windows updates and app updates in the store, so be sure to keep checking for updates every day to make sure you're running the latest and greatest code.
One thing is obvious, the desktop in this version The watermark and version number have been removed. Gabriel Aul also posted a "at least one interesting content to be met with Windows Insider members", which means Before Windows 10 official release July 29 may have more updates coming.