Attacked By The Virus:unable To Access "regedit" & "msconfig"?

i cannot access my "regedit" on run,it will alert me "this program has been disable by administrator" and restart automatically..i cannot access"msconfig" on run,it also restart automatically..my folder option also gone.i have hidden file n now i cannot open it anymore because my folder option gone..i already try to find it but still cannot find..what should i do..??i think it was a virus attack because there's one ie file in "My Picture" name "brontok.a[10]" and even i delete it,it will back again to the folder..i already try to remove it using Microsoft & McAfee antispyware,McAfee antivirus,Norton antivirus but still no change.