The following is a straightforward guide to installing the Oracle Client and Oracle Data Access Components for Windows 64bit clients/servers.
Unzip the win6411gR2client.zip file into an appropriate location.
Run the setup.exe to begin the installation process.
Select the Runtime or Administrator installation option. Click Next.
Select English or another language if you prefer. Click Next.
Click Finish to begin the installation.
Click Close when the installation has finished.
Install the proper TNS configuration files in the software location’s network\admin directory.
See your Database Administrator or Application Development groups for these files.
Unzip the ODAC112021Xcopy_x64.zip file into an appropriate location.
Wait for the command to finish processing.
A reboot of Windows would be recommended.