Expand the download list. Look for a file named similar to: win64_x64_10201_client.zip (Size: ~500-600 MB)
When it was publicly available, the 64-bit version for Windows was typically found under these identifiers: download oracle client 10g R2 for Linux 64 bit Oracle Client 10g 64 Bit Download
Specify (e.g., C:\oracle\product\10.2.0\client_64bit ). Do not use spaces in the path. Expand the download list