Question : Problem: What causes this and how can I regain the space. Running Vista Ultimate

Harddrive space is shown as being almost completely used. When I run PC Doctor, the following message is received "Specified files left unscanned due to access restrictions". This space allocated is 16GB yet none of it is utilized.

Answer : Problem: What causes this and how can I regain the space. Running Vista Ultimate

Could be the vista system restore is eating up some of your hard drive space
http://www.pcstats.com/articleview.cfm?articleid=2262&page=7

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