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AniketDas810144's avatar
AniketDas810144
Copper Contributor
Aug 28, 2026

Windows 11 Insider Build 26220.9223 fails with 0xC1900101

Hi, I am using Windows 11 Insider Preview and I cannot install Feature Update 26220.9223. The update downloads and starts installing. After the PC restarts, the installation fails and Windows rolls...
insider
windows 11
Windows Insider
Marco987's avatar
Marco987
Tin Contributor
Sep 17, 2026

While Microsoft's official release notes for Build 26220.9223 do not list this as a known issue, the pattern of reports suggests a likely incompatibility on your system rather than a universal bug.