I have ThinkPad with win7 preinstalled. I bought a new SSD and iserted it in a free slot and have Freya OS installed on this SSD.
Now I want to put win7 on SSD as well, so I created a 23GB NTFS partition. I use installation DVD. When I boot it, I select the custom install option. After selecting the desired partition and clicking next I get the following error:
Setup was unable to create a new system partition or locate an existing system partition - Can't install Windows 7
This seems like a common error (superuser question discussing this error), however, all the solutions I have found include having only one single partition on my SSD (eg. here). Is there a way to go around this?