Rob has an old MacBook Pro and he wants to move a program from it to his newer Mac Air, but he needs the serial number. The program in question is called inSSIDer. Leo says that when you register a program, it stores the product key in a folder on your Mac, and then when you log in, that file is verified. Leo also says you can try logging onto the Megageek website, who made the program, and see if you can find your serial number there. If so, it's a simple matter of just reinstalling it with the serial number.
Chris wants to run an old DOS program. How can he do it? Leo says to download FreeDOS. It's a free, open source version of DOS that will run his programs. Put it on a thumb drive and boot into that. Or he can boot into it via a Virtual machine like Virtual Box.
Brian has a repair program on his computer that's been installed on his computer, but he can't get the program to recognize the data he copied on the computer. Rich says that the program may require the CD to be used to access the database files. It's likely coded that way, and it's a copyright protection measure. Rich also says it could just be an older program that doesn't work properly on today's computers. It's out of date. Is there a new version of the program he can download?
If you no longer need a program on your computer, or if it is conflicting with other programs on your system, it's a good idea to uninstall it. Most of the time, the program's uninstaller will be adequate for this. You can find that by looking for the installer file, and then selecting "uninstall." This should remove all of the files associated with that program. There may be many other programs that wound up getting installed on your system that you're not even thinking about, and are just taking up space or resources.
The internet has always been an incredible resource for information, but if you're motivated enough, you can take that a step further and get a free or inexpensive college education. MOOCs, or "Massive Open Online Courses," are real classes that have been made available online from schools and universities. Many of these courses are free, but if you decide to pay, you can actually get a certificate of completion or a MicroMasters from it. Here are some of the places you can find these MOOCs:
Mary has Windows XP and she needs to reformat her hard drive, but she has programs she can't replace. Leo says that she can look through her registry to find software keys so that she can reinstall them to reactivate them. But if she doesn't have the reinstall disks, she may be out of luck. That's why having an image of the hard drive is very beneficial.
Mike wants to know how to find all of the files installed by a program so he can remove them after he uninstalls that program. Leo says that the best way to uninstall a program is to use the uninstaller that comes with the program, or use the Windows 'Add/Remove' programs. Ideally the uninstaller should look at the manifest created by the installer and remove all traces. Sometimes those uninstallers aren't well done and it leaves some traces behind.