I have an old ACER EasyStore H340, which figured out it should crash on me the other day.
In the unit I have 4 HD's, 1 for OS and 3 for DATA.

I have done restore (not factory reset) on the unit earlier, and that has been successfull. However I never had the amount of data on it as I do now.
So in a mildly panicked state, I need to restore again.

I started with that yesterday, and restore seems to be OK, but when the WHS v1 connector software shows after restore, it's just hanging and do not continue the installation so I can set a password on the unit.

So my questions are:
1) Would the connector software struggle due to my Windows 10 Technical Preview version?
2) Does it make sense to remove data disks, restore and put in data disk when done? If possible for WHS to reckongnize the data drives afterwards
3) Am I screwed?

tl;dr - Server recovery WHSv1 doesnt complete, and hangs when Connector software is about to be installed on Client computer.