During installation, you can specify an Oracle Home User.

Before starting the installation, perform the following checks for the Oracle Installation users to ensure the installation succeeds:

• Configuring Environment Variables for the Software Installation Owner
  Before starting the Oracle Database installation, ensure that the TEMP environment variable is set correctly.
• Managing User Accounts with User Account Control
  To ensure that only trusted applications run on your computer, the Windows operating systems that support Oracle Database, provide User Account Control.