Avast cannot be updated

Hi,

New to the board and I’m having an issue with my avast…I cannot uninstall it nor can I update it from free to my paid edition

below is the error message I keep receiving when attempting to update or uninstall

“error reading product data from C:\Program Files\Alwil Software\Avast5\setup\part-setup_ais-509.vpx setup cannot continue”

is anyone able to assist with this??

  • Which avast!..?? (Free/Pro/IS)
  • Which version…??
  • OS…?? (32/64 Bit…? - which SP…?)
  • Other security related software installed…??

Il y a pas moyen en mode sans échec ?