ERROR 1721, problem with windows installer package
There is a problem with this Windows Installer package. A program required for this install to complete could not be run. Contact your support or package vendor.
i have tried EVERYTHING that i have found on the internet about this, i mean everything and i am ready to give up! does anyone know how to fix this? its so frustrating as i need itunes and i know it once did work on my laptop.
i've tried command prompts, registry cleaners.. the works.
please help!?
acer apire 5535, Windows Vista