Fix Windows Upgrade Error Code 8007042B 0X4001E
Most commonly, this problem will occur due to a failed installation in the second boot phase while attempting the PRO_OOBE or MIGRATE_DATA operation. You can expect to see the 8007042B – 0x4001E error after the upgrade to Windows 10 / 11 fails due to nonessential connected hardware, an outdated Windows build, a corrupted windows profile, malfunctioning drive, 3rd AV party interference or some system corruption affecting the upgrade procedure. Here’s a shortlist of potential fixes that you can use to troubleshoot the issue:...