I've isolated the issue to BanditUserInterface/BUI_MiniMap.lua lines 173, 174 within the function BUI.MiniMap.Show(). When Bandit sets up the minimap, it looks like this method makes a global call that effectively imposes itself over every other Addon including the Zygor guide. And if I'm not mistaken, the main map itself dubs as the mini-map, which may explain why it's constantly appearing.

When you installed Zygor Guides Free Trial, quite a number of entry & files were created in the Windows Registry (What is Windows Registry) and hard drive, while running the default uninstaller always failed to remove all these data, it leaves us to manually track down and delete the leftovers inside the computer. This is an optional step, you can skip it and call it a day, but if you keep ignoring this every time you uninstall a program, your computer registry may become overloaded as such useless data accumulating, thus lead to system slowing down. Though it is optional, it is still recommended to do it as a good practice of using your computer. 

I'd rather not have to manually re-do all the settings for all my addons in-game unless it's absolutely necessary (since I don't have memorized what the exact settings are I use, so I'd have to take screenshots of them all and then remake the settings to match the screenshots). So I'd rather get some more input about this problem before I try troubleshooting it that way.
Then I made my way inside the cave in Stillpine Hold to complete the last half of the quests: inspect the blood crystals, kill Chieftain Oomooroo, the 9 Crazed Wildkin, and The Kurken. Only it took me a while to get to the cave. I didn’t know the quest was inside the cave so I tried using the waypoint to find the location, but it directed me on the other side of the mountain. Which was quite far from the cave.
That’s where the Zygor guide came in handy. There was a mini Zygor viewer within the game that broke down the steps in the quest so I’d be able to accomplish it easier. Do you notice the yellow arrow at the top of the heads of Norciandra and the draenei Proenitus? Well, it’s the “waypoint” and whenever I clicked on the quest in the viewer, it pointed me to a particular path and showed how far or close I was to the quest. It turned green whenever I was on the right track and yellow when I tried to head to different directions.
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It showed what items were on the rise, which ones were stagnant, and which ones were going down. I don't know how accurate it is since I am not familiar with my realms AH yet. I put some things on the AH with the Zygor suggested price and sold about 5k worth of stuff (I had a ton of MoP gems/herbs sitting around). I did use TSM suggestions as well and for the most part they seemed pretty close. But I did do an AH scan with Zygor before posting.

It's all in the game. It also has a way to select what kind of leveling you want (professions, rep, titles, achievements, etc) and it auto loads. I noticed it skipped a lot of quests that I had already done "out of order". So it went from step 20--->33 or something when it saw I had done whatever. Also there are several options for the guide and how it looks/operates.

Besides registry cleaner, it is also necessary to perform a defrag for your computer hard drive regularly, which is not only a good way to optimize your computer system's structure, but also can help you clean those fragments created in the incomplete program removal. There is a specific computer defrag utility available on the Windows operating system that enables the computer user to perform a defrag for the computer disk, or you can choose a free third party defrag tool like Auslogics Disk Defrag that opimize your computer disk in a quicker and more effective way.