I also met with some terrible situation. I have installed the latest version of Spacedesk for windows 10 one day ago and during its installation mp screen went black. When it came back, I found Disk D was almost cleared. I was terrified and I uninstall spacedesk immediately. I lost more than 200G data. These files are my important experiment materials and results, without them I can’t continue my research. I have tried to recover my data by some data recovery softwares, but the data recovered were almost broken, I can’t open it again. Hope for some help!