My Lenovo T420 came with a standard HD and Windows 7 installed on it. I just finished the first boot setup and changed it with a SSD where I've installed Ubuntu.
Now I need to dual boot. So I bought a DVDcase adaptor for the old HD in order to use Window as a plug-in OS.
Unfortunately I could not boot from that disk. Can I reinstall Windows on the second hard drive from the recovery partition?