Apps, Operating Systems (Windows, MacOS, Linux), or pro level software.
Ed had to reinstall an old version of Windows and when he tried to authenticate it, it won't let him verify with a serial number. Leo says that's probably because Microsoft has discontinued the authentication server and turned it off. So he can't activate it, and it will expire in 30 days. There's probably a workaround though if he does a Google search. Microsoft really should keep it running for people like Ed. He may be able to call them and get it authenticated, but it may just be time to move on.
Bill has been getting DLL errors. Leo says that the only real way to solve this is to do a complete Windows reset, which is really easy in Windows 10. Bill can just press the Start button, then select Settings > Update & Security > Recovery. Under "Reset this PC", he should select "Get Started".
Steve forgot the password on his all-in-one Windows 10 machine. Leo says that can be a serious problem in Windows 10. But since Steve used his Microsoft account to log in, he can change the Microsoft password and he should be able to make it work. Microsoft also has a utility called MSDaRT, which has a feature called Locksmith Wizard that will reset his Windows 10 password. Third party utilities include PC Unlocker.
The driver of the Tesla Model X that crashed on March 23rd did have the autopilot mode engaged. This comes after Uber's deadly crash with a pedestrian, where it has been determined that the self-driving car had not been operating safely. Tesla responded that the driver should have put his hands on the wheel to intervene. Strange curves and barriers can cause problems for the autopilot mode. It's important that any safety driver stay alert when the car is in self-driving mode.
Irwin's wife is disabled and wants to be able to use her computer. How can she? Leo says to check out an Independent Resource Center near her to get assistance using her computer. Leo also says that Windows 10 's Cortana will open up and voice dictate. There's other accessibility features in Windows 10 as well. She should just press the Windows Key and type "accessibility" or "Ease of access." She'll get a complete list of accessibility features. That can help a lot.
Jeremy is currently running Windows 10 Creators Update as a beta called Redstone 4. It's probably the least reliable build because it's a build that won't be shipped for six more months. Redstone 3 will be a better beta build because it's going to ship any time now. It's better to install that one. That's why they have public betas: to get enthusiasts to shake out all the bugs. But the farther off a beta is, the more unreliable it will be.
Kevin is having issues with his files and folders disappearing in Windows 10. Leo says that obviously that's not supposed to happen. It's easy to accidentally drag a file or folder somewhere without knowing it. He should use the search feature to try and find it again. He should also look in the trash can. If he can't find it there, then it could be a failing hard drive or malware. Some malware will do this. He can run a scan on his computer by pressing Windows Key + CMD and type "MRT" for the malicious software removal tool. Then he should run a full scan.
Jim says that every time he does a Windows update, something goes wrong. It always deletes the restore point after updating, too. Leo says that Windows is deleting the restore point because he doesn't have room for a second one. Freeing up space on the drive could help. Leo doesn't trust restore points though, anyway. They don't work very well.