Access to Time Machine from Recovery
hello everyone,
My Macbook Pro was running slow so I decided to reinstall the OS. Now i'm trying to restore my data from my Time Machine (i'm using a WD MyCloud) but I cannot have access to the data! It asks me for Username and Password. I don't remember setting up a username and password for the time machine (actually I followed the instructions and it said to set it up as Guest). Which username and password should I use? the one i'm using to have access to my MacBook or what? How can I restore my data?
MacBook Pro, OS X El Capitan (10.11.2)