You can also update by going to Settings–>Windows update. If it doesn’t update for you then you may need to go to Settings–>Windows update–> Advanced options and check whether you have “Get Insider Builds” and option of “Fast” enabled. Anyway, if you are bit reluctant in rejoining other Insiders on adventure trip, then you may need to know about the “known issues” with the new Build beforehand.
Build 10525 known issues:
Part of the fun of being a Windows Insider is getting to tinker with prerelease software before the rest of the world, but you should be very aware as an Insider that prerelease software will come with bugs and things that are incomplete. Make sure you know and accept what you’re opting in to when you join the program, and of course make sure to back up all of your personal data before you begin.
Mobile hotspot doesn’t work in this build. When sharing the Internet from your device with mobile broadband using Mobile Hotspot, it will fail to get a valid IP address from your device and will show no internet access.
An update to Movies & TV application from the Store will be required to fix an issue with video playback.
Optional languages packs will not be available during the initial launch of this flight, it will be available later this week.