I have contacted them and they said this:
Mohammed,
This error is coming from Windows and the Windows Installer System - not from us directly. Run a Google search for "an error (-5005 0x80070002) has occurred" and you'll see that it's not specific to our products and there's a lot of posts about it from a wide range of install situations with many different products.
You can try this Microsoft tool and see if it makes any difference:http://support.microsoft.com/mats/Program_Install_and_Uninstall
Ryan MaziarzTechnical Support
PMDG Simulations, LLC
www.precisionmanuals.com
and i tried Microsoft tool and nothing has changed