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ForgottenSeer 72227
But when the stable version of 1903 is released, you will have to reinstall Windows if you want to return to the stable channel, correct?
I have no idea
I believe there is a small window (no pun intended) where you can opt out of the insider program when the next version is officially released. Usually when they release the RTM version (which usually goes to insiders first before going to Windows Update), you can at that point opt out of the insider program and keep going with the current version without having to reinstall. Usually the RTM version will remove the small watermark at the bottom right of the screen (insider preview build....). At that point you can turn off the insider updates and it should keep working without any issues, well at least that's how it use to work with past releases. If I am not mistaken the RTM version is typically released 1-2 weeks before it's available to the public (again watch for the watermark to disappear), after that you usually have 1 week or so to stop the insider builds before it continues on. If you miss the time period to stop the insider builds and it downloads the next insider version, at that point you will have to reinstall unfortunately.