Create kickstartdisk on USB (with the use of HitmanPro) on a non-infected pc and boot the infected pc from usb with the kickstart usb drive inserted. (you might have to change your boot-order to boot from USB).
Have done 2 computers within 30 minutes, the last one just finished 2 minutes ago.
I'm working in IT myself and unless this virus is new since this morning it's removable without re-install.
Repeat above steps yourself and tell your computer wizard he's wrong (sell him the solution lol).
Succes!