Maybe you can try to do a new fresh copy of Windows 7 Ultimate (untouched) and use 7Customizer_0.4.4.rar (Stable version)! Remove 7Customizer_0.5.0c and also inside your computer the folder: %userprofile%\AppData\Local\blue4603 Remove also C:\Windows\Logs\DISM\dism.log. A new log file, dism.log will be created. Try to integrate IE9 => /Add-Package /PackagePath:"C:\IE9-win7.msu" (and not from E:\ partition). It seems there is some problems with incorrect command line using SetACL.exe with 7Customizer_0.5.0c for some registry keys, after integrating IE9: http://helgeklein.co...ion-setacl-exe/ *Edit: I made a complete test with 7Customizer_0.5.0c, integrating IE9-win7.msu (x86) on Windows 7 SP1 x86 Ultimate (untouched) and I have the same errors inside dism.log file...But the installation was successful. I'm guessing your image is corrupted or components missing (languages:en-US)?