Review basics of Cisco ASA.
Refer GNS Notes to get Cisco ASAv image.
Remember to use wired NIC adapter with Cloud in GNS3, otherwise use NAT (instead of Cloud) if you connect to home broadband router via wireless.
While installing Microsof SQL Server 2012, I ran into the following error. "The SQL Server registry keys from a prior installation cannot be modified. To continue, see SQL Server Setup documentation about how to fix registry keys." How to fix Replace the D:\x64\FixSqlRegistryKey_x86.exe file with the original file from the ENU\SQLFULL_ENU.iso file downloading from Microsoft Download Center. This ISO file is 4.2GB. So you can click FixSqlRegistryKey_x86.exe to download this file only. After replacing that file, press Re-run to check. All rules are passed.