I have Windows 10 installed. when I Connect Microsoft ODBC for Oracle it Pop's up the below error

I have Installed Oracle Client which Resolve my Issue. I Have two Questions regarding the above Error
1. Why Windows 10 is asking to install Oracle Client? In windows 7 and 8 It does not Require to Install Oracle Client and the connection is Successful.
2. Will I have to Install Oracle Client on each user Machine separately for the Connection of Microsoft ODBC for Oracle?