Help to recover a Digital Rights Management or DRM

Last year I bought two e-book in google play store. Of course they came with DRM. I downloded them and in order to read them It was mandatory to install the ADE and authorize the computer. After few months the computer had a defect on the mother board but I removed the hard drive without problems. I bought a new computer, but I was not able to reuse the same license or even recover them from the other. Please, has somebody faced a similar problem and moved the license from one HD to another?