A caller seven-year-old Windows 7 user wonders if he can save money buying a "refurbished" Windows 10 computer.  He also asks if it will remain safe to operate Windows 7 after Microsoft stops issuing new security patches for it in January 2020.  A new computer buyer looks for a way to securely erase all of the personal financial information from his old computers.  A listener who purchased an upgraded cable modem wonders if she needs an upgraded Ethernet cable for better speeds and bandwidth.  Also she wonders if using a "wired" Ethernet cable in a hotel is better than using a wireless connection.  A caller asks if his antivirus program will help when Microsoft stops patching security problems with Windows 7 in January.  A Windows 10 user wonders how to turn off secure "S" mode in Windows 10.  The futuristic Esker Parliament Wallet contains a tracker to track it with your cell phone.  A caller has problems with a corrupt "personal store" (PST) file in Microsoft Outlook.