I'm going to have to send in my Win8 laptop for warranty repair. This'll take up to two weeks and leave me without a computer - unless I use my old WinXP desktop in the mean time. The problem: that desktop is agonizingly slow - it takes a minute or two just to launch firefox. I think some of it is old hardware, but most of it is caused by windows registry breakdown. So I'm thinking about using Ubuntu desktop and these installation instructions: http://www.ubuntu.com/download/deskt...u-with-windows

This makes it look like the machine can booted into Ubuntu -- and that Ubuntu won't be running on some sort of virtual machine on top of the slow as sin Windows operating system. Is that a correct assumption? And if so, should I expect a computer that'll run at a reasonable speed?