Finder Problem - USB drive opening in separate window for every folder Whenever I connect my USB drive or insert a disc and view the contents every folder is opened in a separate window, how do I prevent this?

'Open folders in tabs instead of new windows'  in the Finder Preferences is ticked.

Im using a MacBook Pro Yosemite 10.10.1, I also experience the same issues when using my works iMac.

I should mention that the USB drive was formatted on my former computer which was Windows 7 and also the CDs that I have inserted have also been created on Windows.

Could this be the issue?

Best regards

Elbow
The following trick worked for me. 


Focus the finder window from your external drive.
Select View -> Show Toolbar option


Now, the finder window will not open in new windows. But, I have to do this every time I open from the external hard drive. I'm still looking for a solution to this.