This file is taking so much of my storage. It is in the Temp folder. It just came into my system when I was experimenting with windows sandbox. Inside it is just some files you would find on a C: Drive, but deleting it is a hassle, I even tried taking permission but it could not delete it. I dont need an extra OS living in my temp folder. I tried everything, from removing read only, to changing stuff in the system, nothing worked. Also happens with NLTmpMnt.