hi viewers Here the fixed solution for the itunes installation and uninstall error itune6464.msi or itune3232.msi error.its fixed here just do a little steps to go on.
Step 01-> Win key+R
Step 02-> find HKEY_LOCAL_MACHINE\SOFTWARE\ Classes\Installer\Products\
Step 03-> delete the product key
Thats all enjoy
nw you can install the new itune version or remove it.