No, Isis is not often depicted with such a symbolism; most likely that is Hathor or Bat or Mehet-Weret.
A cow was a symbolism of the royal wife. Isis after the death of Osiris was not a royal wife but a royal mother.
I believe she was shown with either a normal human head or a cow's head
I believe she was shown with either a normal human head or a cow's head
Isis was usually depicted as a beautiful woman in a sheath dress and either the hieroglyphic sign of the throne or a solar disk and cow horns on her head. Occasionally she was represented as a scorpion, a bird, a sow or cow.
isis
she would hold a stick that represented eternity. She also wore cow horns with a sun disk on her head or headdress.
Sun disk with cow throne
Sun disk with cow throne
Isis wore a red dress with a throne on her head.
Io (the cow) transformed back into a nymph and became the goddess Isis.
Isis was pictured as a woman wearing a long sheath dress. She was also shown wearing either a throne perched on the top of her head or cow horns with a sun disk. SOmetimes, she would be drawn with wings on her arms.
atop of isis head was a lunar orb with bull horns around it or just a small throne on her head
The moon is the symbol for the goddess Isis and she is crowned with a lunar orb between the horns of a bull. Isis is believed to have given birth to the sun and all living things and she is sometimes seen wearing cow horn with a sun orb to represent her as the Mother Goddess.