My Skydrive on 8.1 is now uploading 40GB of data, will probably be finished in a month!!

I had 2 partitions on my hard drive, one with Windows 7 and the other had all my SkyDrive folders synced with the desktop program that can be used with Windows 7.

I then wiped Win7 and installed Win8.1. I changed the location of the Skydrive folder to point to where the Skydrive folder was on the other partition that was in sync with my skydrive from the desktop skydrive program installed on Win7. Despite all the files being the same it is uploading all my files again!!

Anyone have any ideas how to stop this? I can't hardly use my computer because it's slowing it down and the internet!

With the old SkyDrive program on Windows 7 if the files were the same it wouldn't upload or download them but it doesn't seem to be the same with Windows 8.1.