Hmm, if your data was on D and you had not enabled restore points for D, then there is no chance to get them back with SE. I always recommend to enable restore points for all partitions and to take them from time to time - just for problems like yours (have to do it yourself for partitions other than C - is not automatic). Sorry, but there is not much you can do. You can try Recuva
- but that works only sometimes.