access is denied despite the fact , that I see myself and administrator as having full access when going to "right click--properties--security--advanced". I also tried - under guidance from a colleague - the iaclcs command without success. what can I do ?

can you log in as administrator and try to access it? Or is your account an admin accout as well?

Hi, Try taking ownership of the drive if you can. Right Click > Properties > Security Tab > Advanced > Ownership Tab > Edit > Choose your username in the list Let us know if that helps. Regards, Leo HuangLeo Huang TechNet Community Support