Just did this today for someone. Created a "UserFiles" folder on D drive.  Inside that folder I created a folder for each user. Then I used windows to move the location of almost all folders in C\Users\ to the new folders I created on D. Worked fine. Bear in mind some programs may have to be adjusted to the new path.
I purchased a XPS 8930 1 year ago and now I see All data is stuck on the SSD. Only 10 Gb free while 931 Gb is free on D How to move the data to the D hard drive without breaking anything (links etc), For instance how would I move the folders under Documents to D:? [IMAGE]  
XPS 8930, all data stuck on SSD, move to HDD?