Builds 26100 and 26200.8655 being available in the Release Preview (RP) Channel means they are now offered through Windows Update to devices enrolled in that Insider channel. To get them, use Windows Update as with other RP builds:
- Open Start > Settings > Update & Security > Windows Update.
- Select Check for updates.
- If the build is offered as an optional preview, it appears under Optional updates available; select it and choose Download and install.
- If it is a regular cumulative update, it will download and install automatically according to your update settings.
These RP builds are delivered the same way as other Windows 11 24H2/25H2 cumulative or preview updates described in the referenced KB articles.
References:
- September 30, 2024—KB5043178 (OS Build 26100.1882) Preview
- October 24, 2024—KB5044384 (OS Build 26100.2161) Preview
- November 12, 2024—KB5046617 (OS Build 26100.2314)
- January 28, 2025—KB5050094 (OS Build 26100.3037) Preview
- February 25, 2025—KB5052093 (OS Build 26100.3323) Preview
- March 11, 2025—KB5053598 (OS Build 26100.3476)
- July 22, 2025—KB5062660 (OS Build 26100.4770) Preview