Remix OS on Windows XP SP3

[wits...@gmail.com]

I have three older laptops which I would like to install Remix OS onto. The laptops are:

1. Lenovo X41
   
2. Toshiba Tecra M4
3. Toshiba Portege Tablet PC

I do not recall there hard disk capacities or their RAM capacities.

In principal, is it possible that I can:

1. Install Remix OS for Windows onto:
1. A 320GB external USB Drive and, successfully, run Remix OS when the drive is attached to one of the above 3 laptops?
2. A USB Flash Drive of 8GB or more and, as in 1. above, run Remix OS on any one of the three laptops listed above?
2. Will I have to have an individual installation for each laptop?

Lastly, the laptop that I am typing this on is looking at retirement, as a Windows PC, and could continue life as a Remix OS PC. It is an Acer E1-571? Is there anything forummers think I should beware of if I instal Remix OS for Windows on its Hard drive?

Does anybody bitcoin mine on a Remix OS for Windows PC?

Your advices will be appreciated.