A graphic designer looks for a good anti-virus program for Macintosh computers that will not slow his system down. Also the caller discussses how blowing accumulated dust out of the computer can drastically improve performance. A listener suggests using the "compatibility mode" for the problem with Windows Microsoft Excel for Windows XP. We help a user use the "Windows Update Helper" to fix problems with Windows 10 Update not working properly. A listener gets assistance troubleshooting his wireless connection with his laptop. We help a user who is having difficulty receiving e-mail due to incorrect wireless settings to fix her "DNS" settings. A Windows 7 user attempting to update his GPS device wonders if a ".NET" software update is safe to install. We help a user change the default start-up page using the Mozilla Firefox web browser. A listener seeks alternatives to Microsoft Outlook for privacy protection against e-mail marketing purposes and asks about setting up a private file server. Finally, we help a user set up wireless printing from a Google Chromebook to a Brother printer.