I’m running Mavericks (10.9) on a mbp version 6,1 and Bootcamp assistant doesn’t let me create install windows from an USB drive.
Here’s how to fix it:
- Locate Boot Camp Assistant.app in /Applications/Utilities folder and backup it somewhere
- Right click the copy in Utilities folder and click on Show package contents.
- Locate Info.plist file and open it with a text editor
- Locate the tag “PreUSBBootSupportedModels” and change its name in “USBBootSupportedModels” (just remove “Pre”)
- Save that plist, it will require you to authenticate as administrator
- Now you should be fine if you’re running a system older than Mavericks.
If you’re running Mavericks you need to replace existing app signature as an extra step, otherwise Bootcamp assistant will close unexpectedly:
- Open the terminal and type “sudo codesign -fs — /Applications/Utilities/Boot\ Camp\ Assistant.app”
- The command will print out “Boot Camp Assistant.app: replacing existing signature” then quit.
- Now your assistant should display a new “Create a Windows 7 install disk” option