While McAfee scans for all files and folders in the computer , you can still exclude certain drives so at your convenience, Please follow the below instruction to exclude network drives .
Under Home screen of Mcafee , click on Real time protection : On
Then click on Real time scan settings
Click on Scan setting
Uncheck the option - Network drives.
Click on Apply and OK
From the subsequent scan network drives should be ommitted .
Thread moved to Virus scan section
McAfee Online Community Moderator