Hi nikki tester,
If you joined the Windows Insider Program by mistake and would like to leave it, you can usually do so from Settings > Windows Update > Windows Insider Program.
Under "Stop getting preview builds*"*, look for the option to "Unenroll this device when the next version of Windows releases" and turn it on. This will stop your device from receiving future Insider builds and return it to the public release channel when the corresponding stable version becomes available.
I would also recommend checking which Insider channel your device is currently enrolled in. You can find this under Settings > Windows Update > Windows Insider Program.
- If you're on the Beta or Release Preview channel, you can usually leave the program without reinstalling Windows.
- If you're on the Dev or Canary channel, returning immediately to a stable public version may require reinstalling Windows because those builds can be ahead of the public release.
To help determine the best option for your device, could you let me know:
- Which Insider channel is currently shown?
- What version and build are reported when you run winver?
Once I have that information, I'll be happy to advise further.
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