Solved 0x8007042B 0x4000D error to upgrade from Win 11 23h2 to 25h2


Megahertz

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Solved. My feedback for those who are having same 0x8007042B 0x4000D error on an upgrade.

My wife has an old but very good i7 2600k on a Z77-A with 4+4G DDR3.
It was running Win 11 23h2 and I was trying to upgrade to 25h2 by doing an in-place upgrade and it was failing with 0x8007042B 0x4000D error.
0x8007042B 0x4000D search
The error seems to imply it is trying to migrate some type of Data but cannot.
The path to the solution I found on MS SetupDiag.
So I ran SetupDiag.exe, on the C:\$Windows.~bt\Sources and then opening C:\Windows\logs\SetupDiag\SetupDiagResults.xml
On SetupDiagResults.xml it said that D:\Users\Nadia\Documents\My Music folder was preventing to install and that I should delete the folder.
I don´t know why, under Documents, there was two Music folders. One was D:\Users\Nadia\Documents\Music (almost empty) and another D:\Users\Nadia\Documents\My Music (with musics). So I moved all files and folders from D:\Users\Nadia\Documents\My Music to D:\Users\Nadia\Documents\Music and deleted D:\Users\Nadia\Documents\My Music.
Documents also had two Picture folders: D:\Users\Nadia\Documents\My Pictures and D:\Users\Nadia\Documents\Pictures so I moved all files and folders from D:\Users\Nadia\Documents\My Pictures to D:\Users\Nadia\Documents\Pictures and deleted D:\Users\Nadia\Documents\My Pictures.

I think My Music, My Pictures and My Videos came from a Win 7 Pro installation. Although I did a Win 11 23h2 clean install on the SSD the data structure was kept the same on the HDD data drive.

Tried again the in-place upgrade and it was successful
 
Windows Build/Version
Win 11 25h2
Last edited:

My Computers

System One System Two

  • OS
    Windows 11 Pro - Windows 7 HP 64 - Lubuntu
    Computer type
    PC/Desktop
    Manufacturer/Model
    custom build
    CPU
    i5 6600K - 800MHz to 4400MHz
    Motherboard
    GA-Z170-HD3P
    Memory
    4+4G GSkill DDR4 3000
    Graphics Card(s)
    IG - Intel 530
    Monitor(s) Displays
    Samsung 226BW
    Screen Resolution
    1680x1050
    Hard Drives
    (1) -1 SM951 – 128GB M.2 AHCI PCIe SSD drive for Win 11
    (2) -1 WD SATA 3 - 1T for Data
    (3) -1 WD SATA 3 - 1T for backup
    (4) -1 BX500 SSD - 256G for Windows 7 and Lubuntu
    PSU
    Thermaltake 450W TR2 gold
    Keyboard
    Old and good Chicony mechanical keyboard
    Mouse
    Logitech mX performance - 9 buttons (had to disable some)
    Internet Speed
    500 Mb/s
    Browser
    Firefox 64
  • Operating System
    Windows 11 Pro
    Computer type
    Laptop
    Manufacturer/Model
    Asus Q550LF
    CPU
    i7-4500U 800- 3000MHz
    Motherboard
    Asus Q550LF
    Memory
    (4+4)G DDR3 1600
    Graphics card(s)
    IG intel 4400 + NVIDIA GeForce GT 745M
    Sound Card
    Realtek
    Monitor(s) Displays
    LG Display LP156WF4-SPH1
    Screen Resolution
    1920 x 1080
    Hard Drives
    BX500 120G SSD for Windows and programs
    & 1T HDD for data
    Internet Speed
    500 Mb/s
    Browser
    Firefox 64
Thanks for posting this Megahertz, not the issue I'm facing but it may help someone else. (y)
 

My Computer

System One

  • OS
    W11 home
    Computer type
    Laptop
    Manufacturer/Model
    lenovo LOQ 151RH8
    Other Info
    Multiple systems. PC, laptop, Windows, etc.
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