I had installed
Oracle VM VirtualBox version 4.2.10 r84104 on Windows 7.Then I create a Windows seven operating system(form an iso image file) as a guest on it with a
shred folder.But when I try to start guest,I see this warning:
So I reinstalled
VirtualBox,but problem remains yet.How I can solve this problem?May be it correspond to this version of VirtualBox?