Malke has a good point, but a successful recovery is highly dependant
on whether other data has been written to the drive (almost always the
case), which would overwrite the file you have deleted.
What you can also do is if you have Shadow Copies enabled and the files
existed prior to the creation of the last Restore Point, is right-click
on the folder that originally contained the files or folders you
deleted, and then go to the "Previous Versions" tab.
Select the file/folder you want to restore. From there you can "open"
it to see if it contains the files you want, "copy" it to another, safe,
location, or "restore" it.
Copy is the better choice, because you can restore the contents without
risking the current contents of that folder.