Forum Discussion
Notice that my version of Windows 11 Pro Insiders Edition going away keeps appearing
Error 0xC1900101 is normally a driver-related upgrade rollback, so enlarging the EFI partition should not be the first response without a log showing a partition failure. Back up your files, disconnect nonessential USB devices, ensure ample free disk space, and temporarily remove third-party antivirus, VPN, storage-filter, or hardware-management software. Install the latest BIOS, chipset, storage, graphics, and network drivers supplied for the exact PC model, including optional driver updates, then retry once. If it rolls back again, run SetupDiag and inspect setupact.log and setuperr.log in the Panther folders to identify the driver or migration phase that failed. Remove or update the named driver before another attempt. Because the Insider build is nearing expiration, use only an official Microsoft Insider ISO for the same or a newer eligible channel. If no supported in-place upgrade succeeds, back up everything and clean-install a current public Windows release.
I consider myself computer literate, but some of the remediations you recommend leave me confused as to how to accomplish all you request. As I stated during the chat time with MS the individual did try the diagnostics you suggest without success or significant results. Is there a mechanism whereby I can chat with a MS person to work through your other suggestions? Or allow the individual that would have more confidence than I currently seem to have to control my computer and go through your suggestions?