A recent inquiry from a Neowin reader, known as xillibit, has shed light on a recurring issue that many users are facing while attempting to update to Windows 11 24H2. The error code 0xc1900101 has emerged as a common hurdle, prompting curiosity about its prevalence among the user community.
Widespread Error Encountered
The 0xc1900101 error appears to be more than just an isolated incident; it has been reported by numerous users throughout the Insider testing phase and the final release of 24H2. This particular bug made its debut in the very first Insider build, 26052, back in February. Since then, it has reappeared intermittently, with notable reports surfacing again in September. Microsoft has acknowledged the issue, stating that it was addressed in the latest build, 27718, earlier this month.
Fixed an issue which was causing some Insiders to experience a hang at the boot screen and their PC to roll back with error 0xC1900101 when trying to upgrade to the previous flight.
The Feedback Hub has also been a platform for users to voice their concerns, with one entry titled “My PC rolled back when attempting to install the latest Windows Update (error code 0xc1900101)” garnering over 8,000 upvotes across two separate entries. This indicates a significant level of frustration among users encountering this error.
Understanding the Error Code
In response to the growing number of queries, Microsoft has clarified that the 0xc1900101 error is a generic code indicating that an update has failed and has subsequently rolled back. The company elaborated:
.. error code 0xc1900101 is a generic error displayed when an update fails and rolls back for some reason. This is an area we monitor closely and can have different root causes depending on which build you were attempting to upgrade to and your setup. If you were attempting to update to a previous Insider build, please try the latest one, as it may address your issue.
For those seeking to delve deeper into the specifics of their issue, Microsoft suggests consulting the update logs, which can provide valuable insights: Update Logs.
Potential Solutions and Driver Errors
In a more detailed support article, Microsoft has indicated that the 0xc1900101 error often stems from driver issues. The company recommends the following steps to troubleshoot the problem:
- 0xC1900101 – 0x2000c
- 0xC1900101 – 0x20017
- 0xC1900101 – 0x30018
- 0xC1900101 – 0x3000D
- 0xC1900101 – 0x4000D
- 0xC1900101 – 0x40017
For those who are not seeing the Windows 11 24H2 Update available on their devices, there are methods to force-trigger the update using Group Policy or Registry tweaks.
