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I have the same issue. Did you solve it? When run program from microsoft packed in sfx cab (NetFx20SP2_x86.exe, scripten.exe, etc.) comes out error "Extraction failed" "The operation completed successfully." All rights to installer checked belong to the Administrators group. Create a new user with Admin rights, are not help. safe mode does not help. attempt to unpack and run also did not work. from the command line gives the same error. attempt to reinstall ie8, the same error.