Plz Help,cant remove this virus WIN32/Hidrag.A

i m using AVG Antivirus it can find the virus infected files & stop to infected other file,

but it cant heal my most of infested files & put it in vault area,

so,How can i get those files?

atleast 3 to 4GB files R infected in vault,

even my some windows files also infected like calc,regedit....