In order to update what?
Do you mean you're getting the error message about "missing or invalid personalization information"? If so, that can mean a couple of things. 1. Your operating system is not compatible with PSE 2. If you have a Mac running 10.4 or higher, forget it. Windows 7 and 8 are pretty if fish, too. 2. The other problem is that your hard drive is too big. PSE2 can't understand the large drives on modern computers. 750 GB is as large as you can go, although the drive size problem is more likely to produce a false warning that the scratch disks are full.