I am about to reformate (or what you call it, when I reinstall my HD), and earlier, I used this comlicated way

Click the File tab > Options >Advanced >Import and Export Wizard > File to import, click Browse, select the file that you want to import, and then click OK.

But the last time I did it, I found out, that I could just take the files that containe these date, put them away - and place them the rigth place - and it worked.
But where do I find these files?
Thanks