Uploaded March 2026 | Updated September 2026, 3 weeks ago

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In this video, I will show you how to fix the Windows 11 25H2 upgrade error 0xC1900101 - 0x40017, where the installation fails during the Second_Boot phase.
This error usually occurs due to outdated drivers, incompatible software, or system settings that interfere with the Windows upgrade process.
Follow these simple steps to resolve the problem and successfully install the Windows 11 25H2 update.
If this video helped you, please like the video and subscribe to the channel for more Windows troubleshooting tutorials.
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