As we get closer to July 29th and Windows 10 RTM Microsoft have temporarily suspended the availability of Windows 10 builds as they switch over to using production channels for delivery of new build. For a 24 hour period (starting last night) Builds 10162 and 10166 will not be offered via Windows Update so if you check for an update it will show as “up to date”. The ISOs for build 10162 is no longer available and the product keys will no longer work.
So now we wait for the next build!
Specifically, this means that in the next 24hrs:
Builds 10162 and 10166 will no longer be offered over Windows Update, and whatever build you’re on will show as “up to date” if you check for new builds.
ISOs for build 10162 will be taken down from the http://insider.windows.com site and prerelease keys will no longer activate builds.
Once we have a new build available we’ll let you know through here with a blog post, Insider Hub, and on Twitter.
Via Windows Blog