Been searching the forum for notes about dual booting alongside an existing Win7 installation.
Everything I found suggests that there is an option in the install program ( from USB ) to install
'alongside existing windows 7', but I dont see that. Just 'replace Windows 7' and 'Something else'.

If I choose 'something else', then I appear to need to know something about partition shrinking/creation
etc & I am not 100% confident enough to 'learn by failure' on that subject !

Any help appreciated.