About: http://webisa.webdatacommons.org/10795239

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	I agree with the guys who are saying 30 GB is not enough for Windows 2008 R2, but I had the same issue you are facing in the past and I could not do anything other than deleting some files.
http://www.w3.org/ns/prov#wasQuotedFrom	serverfault.com