I was trying the same thing... here are the steps that worked for me.

Click on restore backup

Navigate to the folder where your quickbooks data is stored on your computer (like desktop, or documents)

Find the company file you want it ends with .QBW

at the left is the column that says version - click on choose

click on continue

a window will appear with the dates of your backups for that company file,

click on the date you want to restore

Click on Close

click on continue

You can now decide to copy the files to a new location (I recommend)

Type in the name for that new location

click on OK

Wait until the restoration is done

Go into Quickbooks and open the restored file from the new location

Sorry the numbers feature in this response doesn't work so I couldn't number the steps.  Hope this will help someone else.