I needed to remove some programs on my computer for disk space. I must have removed the Nthisum activation info from my computer. Now Nthusim is running in eval mode. I sign in to activate and it says I have no activation's left. I have Nthusim only on this computer. I have been having trouble getting Nthusim to run. I need to restart my computer several times for it to run. I think windows is corupted but I don't know . I was trying to fix the issue when this happened. I need to be able to reactivate Nthusim. I bought the software in 2012.
Thanks
Randy Freeman