I used epoxy without much fuss and I never used it before and only tiled once before in my life when I did my small kitchen backsplash area last year. So laticrete epoxy isn't that hard, honest. Once its done, your done, and you will have a durable grout. Have you considered urethane grout? It needs a 7 day cure time, without use, but other than that I've heard good reports. It is pre-mixed and the container can be recovered for use later; how long, I don't know. A high end tile shop in my locale uses it for their display floors because of the ease in use and the ability to cover and save. It is a Hydroment brand that they use. I have used the Hydroment thinset and have been very pleased with the product. They make the Ditra-Set that I used for my Ditra installation. Regarding Laticrete SpectraLock: What I did for my floor grout was mix a custom color with laticrete spectralock colors Platinum and Silver Shadow and some other grays. I did some small mixing with the small cartons of color you can get at Lowes, but I only purchased one tub of the epoxy. I prepped all my dry color combos and kept records. Then I mixed the epoxy and divided into small disposable containers mixing the dry into each. Ultimately, I came up with a 3part platinum and a 1part silver shadow that I used on my floor. I am very happy with it. I bought a large sized Laticrete kit of the Platinum online, that was linked through the Laticrete web site. I then bought a small carton of just the dry Silver Shadow color at Lowes and measured this SS amount, removed that same amount from the Platinum then added the SS. The large kit is equal to 4 small kits. So that was my 3:1 ratio. Of note the Laticrete Spectralock in the small cartons at Lowes is the "Spectralock Premium" and the large kit I got on line was the "Spectralock Premium Pro". The colorants are all the same, the epoxy, parts A&B are what differs. The Pro I think is a newer product and maybe has better application properties. As I said I ordered mine online, but you may be able to get the Pro version through special order at Lowes. Here is my finished grout, Silver Shadow on the left and Platinum on the right, My custom is the grout in the tile:

On many/most/all thumb drives there is a tiny LED light, do you see it with yours? Right click Start click Open Windows Explorer In the new window look down the left side for your thumb drive, possibly showing as the F drive. When you insert the thumb drive is there an audible signal? When you remove it is there an audible signal? What happened when you visited the link Zep provided? Simply saying you tried everything is not helpful, a more detailed reply could help considerably. Chuggerguy asked if you daughter had a Mac or Linux program. Does she? Did she format the thumb drive? These are normally formatted in FAT format.

I believe that the item you described is to adapt wifi connection to a computer that didn't have wifi installed in it. If you have a wifi computer, it's of no use to you. I have one on an old laptop, it works to adapt it on the outside what the others have inside them.

call your telephone people or internet server. They can walk you through it. Our phone company will send out their telephone guy and he'll help you. It is most likly an easy fix. Our server has a program that I use. The only mail I get is people I have on my "allways allow list" Otherwise it all goes into my "spam" folder. Then I check it for other email I want or just delete it. not sure if I explained it verywell but I'd first call your telephone co.