Windows 10 Pro upgrade missing "boot.wim" file
30,423
I had the exact same error while I wanted to upgrade from Windows 8.1 to Windows 10. My solution was the following:
- Log in as an administrator.
- Press Windows+R, enter regedit and press enter to open the registry editor.
- Locate the registry key HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\WindowsUpdate\OSUpgrade (if it's missing, create it)
- Create a new DWORD (32-bit) value, call it AllowOSUpgrade and set its value to 0x00000001.
- Restart the control panel, browse to "Windows Update" and search for updates (if the button from step 6 is not already there).
- Now, a button with Getting started should appear. Click on it and follow the instructions to install Windows 10.
Related videos on Youtube
Comments
-
Michal over 1 year
I am trying to install/upgrade Windows Pro 8.1 to Windows 10 through setup.exe from
C:\$Windows.~BT
. But installer tell me thatboot.wim
file is missing.In update history logs I can see that update to windows 10 failed many times since july 29th.
-
GreenGiant almost 8 yearsDidn't work for me because that registry already has that value (0x00000001).