Yes, I understood that 'other' data should be outside the Poolpart.* folders. That's why I didn't understand why my 'Other' part was that large even after waiting very long (I mean: there was no 'calculating/measuring indicating anymore at the bar and the only folder was Poolpartxyz123...: I even deleted System Volume Information and Recycler from that drive). However, I now 'just' moved the data from X:\Poolpartx\* to Y:\Poolparty\* (so from within the poolpart folder to a poolpart folder of another drive). It may be not that efficient, and I don't know why, but after I moved the files, there