KB3163018 is the most recent cumulative update for Windows 10 released by Microsoft, but just like its predecessors. Several issues, some of which make it impossible to install on a number of PCs, affect the build.
For example, the tool may fetch an older version of Windows that's now installed, at which point users will not have the option to retain their personal data.
For other users, it's even worse, as there's no error message displayed, and installation just fails for no clear reason.
At the moment, the tool can be downloaded via a link embedded in a long message on Microsoft's support forum; the message appears in Edge after clicking a new link in the Settings panel under the "Update & Security" item's "Recovery" option. A working Internet connection must also be available to grab a Windows image. Microsoft will be issuing both limited time (24-hour) quests and advanced quests that may require users to change system settings and revert back to previous configurations.
However, if you're a member of the Windows Insider Program running Windows 10 Preview Build 14367 or later, you can download the tool and give it a try. Full-screen Remote Desktop windows now unsnap correctly while being prompted for credentials after users attempt a connection. This integration also allows you to access quickly your recent files, thanks to integration with OneDrive and OneDrive for Business. As Windows 10 delivers significant innovations, many older devices are not able to upgrade successfully without an impact on the customer experience.
My hope is that all these dangling issues and gotchas will be fixed by the time the Anniversary Update goes out the door in mid-to-late July, 2016. And if you're interested in knowing more about what has been fixed and removed in this build, read the blogpost here.