Erik and Bob take your computer questions. Erik recounts a "cloud horror story" where a student's online course participation record is missing from the on-line course management system. A Windows 7 user has a "low disk space" warning caused by improperly configured backup software. We discuss how much hard drive space you should have when purchasing a new computer. A caller has a problem with an "s.yimg" error when trying to access Yahoo! We discuss how to clear your browser cache to fix the error and tell about the signs of a web browser hijack. Who cracked Mexican drug kingpin El Chapo's encrypted chats? A Windows Defender anti-virus user has problems with conflicting anti-virus software running. We tell you why it is best to have only one anti-virus software running on a computer. A user has a "Network Path Error Not Found" when connecting to a network. A caller seeks a recommendation for a good hard disk cloning/migration software for a PNY solid state drive.