We have login the VLSC page and downloaded the SQL Server Standard 2008 R2 and then tried to install it in a new server, however we encountered an error during the installation process at the startup. The error message is “The SQL Server product key is not valid. To proceed, re-enter the product key values from the Certificate of Authenticity (COA) or SQL Server packaging. Error code 0x84B40000." We have also tried to download the 180-days trail version to install in this computer, the installation process is successful, so anyone has encountered this problem before?