Laptop or desktop computers and any components within.
Robert got a new modem and now he has a random disconnect problem. He then can't get on the internet. Leo says that it could be that Robert is having issues with the router in the modem. He should go into the settings and make sure to turn off the router option. It could be running into competing routers. Leo says that the ISP could be changing the settings remotely as well. That's why Leo advises buying his own DOCSIS III modem. Another thing to do is check the network settings to see if his computer is configured to act as a router. If so, that would point to malware.
Karen has an issue with a "jumping cursor" when she types on her laptop. Leo says it's a common problem when you have a laptop with a trackpad. The solution is to go into the settings and turn off the trackpad when you're doing a lot of typing. She can also adjust the sensitivity of the trackpad. It could also be that the trackpad is dirty, or that it's static electricity causing it. She can just plug in a separate keyboard via USB and see if it happens. If it does, then there's a hardware issue.
Tom wants to make sure his wireless router is secure. Leo says the only thing Tom really needs to do is turn on WPA2 encryption. It's in the router setup, which can usually be accessed at 192.168.1.1. He should turn on WPA2 and give it a password that isn't obvious. Once that's turned on, all the traffic is encrypted.
Brad built a computer running Windows and now it just shuts down while he's still using it. Leo says it sounds like a bad power supply. Brad replaced it, though. Leo says that's the downside of building his own machine -- he'll have to hunt down the problem himself. Leo suspects that since the power supply didn't fix it, the motherboard is probably the culprit. It could have been from a power surge. He should try replacing the battery for the BIOS and see if that resets it. If that doesn't work, it could be the motherboard. The next thing to address would be the CPU.
Paul's friend is getting married in Italy and they want to know how they can get internet in their room. Leo says to go to prepaidwithdata.wikia.com. There, he can find where to go to get a MiFi card. A MiFi is a small credit card sized device that gets internet from a cellular network and turns that signal into Wi-Fi. That way he can pay through a local carrier in Italy and not pay international data roaming fees.
Michael bought an OCZ SSD to speed up his computer, and it's much faster than the SanDisk SSD. Leo says that's because of trim. SSDs don't have to be defragged, but with trim, they can accomplish something called "wear leveling." That way the SSD won't wear out prematurely due to an overused sector. It also allows it to be consistently faster. Without trim, SSDs tend to slow down over time. The good news is that trim is built into the OS now. He doesn't need AHCI, native command queuing, or hot swapping.
Mike's home built computer crashes when he closes a program. The screen turns black and hangs up. It doesn't work again unless he reboots it. Leo says that's the hassle with building his own -- he has to eliminate each issue. Leo says the first thing to do is update his video card driver. He thinks it may be a bad driver. Leo says he can try booting to a USB key with Ubuntu on it and try to repeat the issue. If it repeats, he'll know it's a hardware issue. If it doesn't, he'll know it's a software issue.
Jim has several Windows 8.1 machines, and the keyboards on seven of them simultaneously stopped working. He found a fix for it, but he's wondering what happened. Leo said that it was probably an HP update that broke the HP keyboard drivers. They have a separate update from Windows that is always running enabling them to push updates on the fly. It sounds like their update ran afoul with Windows and caused the keyboards not to work. To turn off the HP updates, he should type Windows + Q, type "HP Update" and turn it off.
Ed wants to know if a MacBook is a good laptop just for getting online. Leo says it is, but it's also overkill. We've been conditioned to accept that we need a complicated computer for our general purpose daily computing needs. Leo recommends a Chromebook. They're very secure, and extremely affordable at $200 to $500. For most people's needs, it works just fine.