hi, im having the same problem as lillbeauty-

“COULD NOT OPEN KEY:UNKNOWNINSTALLERUPGRADECODESB8C7D62AD5782E84EB1D178662D820A2,VERIFY THAT YOU HAVE SUFFICENT ACCESS TO THE KEY OR CONTACT YOUR SUPPORT PERSONNEL”

ive tried a number of methods mentioned but none work :(. I have windows ME any help would be most appreciated!!!