Is it legal to install "xbox" apps if you don't own an xbox?

To create a gamertag you only need to login in the xbox site, you browser/computer/connection is the problem. Sort it out

I can't log into xbox site, it crashes every time. See above for details. My browser/computer/connection is not a problem.
 
How about creating a new MS ID as an alias to your original ID and logging in with the alias?
 
If you have insomnia you can read the 93 threads on this topic at xbox.com (none with any solution, just a lot of "helpful suggestions" that don't work):

Search - Xbox.com Forums

I even contacted xbox support (this step is only recommended for masochists). They brushed me off with the usual line they give when they don't have a clue, "our servers have been having trouble lately, can you try again in a couple hours?". I've been trying for a year.
 
If you have insomnia you can read the 93 threads on this topic at xbox.com (none with any solution, just a lot of "helpful suggestions" that don't work).

Have you tried creating a new live account and then transferring details? As I previously asked.

You could create a new one and at least try it to see if everything thing works and you can get a Xbox account. Then look at transferring your old purchasers etc across.

It's a pain in the *** I know. I've had a problem in the past, Support is very helpful as long as its a simple/known fix for them. But if it's a small percentage problem which to them it isn't worth the cost of figuring out out, that's when you get the endless useless solutions.