White Coco4 :
Windows 7 home premium and will i loose all of my files?
will you loose all your files?
Maybe, maybe not.
Best way to ensure you don't is to copy them elsewhere first. That way, no matter what happens, you have all your critical stuff.
Generally, Windows will try to save your current 'stuff' in a folder called Windows.old. But if you make the wrong choices during the install, that won't happen.
Copy your stuff elsewhere first.