CORE i5 AND i7 WINDOWS XP COMPATIBLE

Yes

Now, please turn off your caps lock.

1) Your keyboard appears to be broken. Perhaps you would like to fix it.
2) Yes, they are completely compatible (though there really isn't any reason to go with anything other than windows 7 x64 in any new build).

Thanks

How I can do to install Windows XP on the machine (toshiba core i5)?, If even when I have Downgrade Kit Microsoft can not find the hard drive?

I would not recommend using Win XP with a Core i3/5/7 machine.

Win XP Home is only for single core CPUs. Win XP Pro has SMP, which can recognise multiple CPUs. But XP was released in 2001, and back then multi-core didn't exist, only multi-socket CPUs (2 CPUs each in it's own socket).

Windows 7 would recognise and properly use multi-core CPUs.

Why would anyone use a 2001 OS with a 2010 CPU?

If only because most new builds have 4 - 6 GB in them and most XP installations are 32 bit.

Because its still better. And its been updated so its not a 2001 os anymore.

XP is the greatest OS in microsoft history by far. And it still has plenty of life. And its cheaper than buying a new OS.

Welcome to Tom's, newcomer.

These two sentences are unrelated and the first is completely wrong. Win XP Home is entirely capable of using 8 threads, just like Pro. SMP has nothing to do with that. SMP is for multiple CPUs in separate sockets. If you're running such a system then the chances are you're not an average user and should not be using Home.

In order to browse images stored on whatever medium or empty the recycle bin more quickly for instance...?

This topic has been closed by Aford10