I have spent all day and night trying to install printer drivers for Officejet 4500 G510g on my Acer Aspire One 722 netbook without any success. I am using Windows 7 Home Premium. I have down loaded and tried to install the drivers from the HP website several times; I have downloaded and isntalled updated drivers from Acer, I have tried every search phrase i could conjure up to try to find an answer but no luck! I have had this computer for a couple of years and have tried to get the drivers to work in the past but each time I fail. What can I do that will actually work? I have already used all of the links in this thread to no avail. One error message that I did find was Application Path Issue C:\Users HKCU\Software\CurrentVersion\AppCompatFlags\Compatibility Assistant\Persistant. The printer works perfectly with my other Acer 32bit netbook.