Hi,
Welcome to Microsoft Community and thank you for the post on it.
It looks that you have duplicate of files and documents as you have performed multiple number of File Transfer feature on your Windows 8 laptop. Therefore you would like to know another way to back up your file as it is in Window 7.
I am afraid to inform you that there is no other option in Windows 8 other than File Transfer. However you can remove the duplicate file and documents. Perform the following steps to Change the settings.
a) Press Windows Key and X Key.
b) Select Control Panel. Click on View All.
c) Click on File Transfer. Click on Advance settings.
d) Select the desired option from Keep saved Versions from the drop down menu.
You can clean up or delete the previous version as well. On the same page as mentioned above click on Clean up Versions. Select the appropriate option and delete the rest.
Refer the link given here for further assistance:
What if something goes wrong in File History?
http://windows.microsoft.com/is-IS/windows-8/what-something-goes-wrong-file-history
I hope this resolves your issue, please write to us if you have any other Microsoft issue related to Windows operating system.