Hmmm go to:
Control panel > System > Device Manager > Network Adapters > right click Properties > Advanced tab
Scroll down to Speed & Duplex.... what is it set at? Some have luck with Auto-negotiate, others 100 mbps half duplex.
If you have a wireless card, same procedure, but look for Wireless Mode under Properties... what is that set at?
Also this might sound dumb, but bear with me.
Disable any firewalls and turn off any Anti-virus or malware detection programs running in the background (on both machines), then "test" your transfers again. Protection programs can slow file transfer due to packet inspection, if it runs faster, then possibly another protection program might be in order.
McAfee has been know to cause this.
Just thought of something else!
Start > Control Panel > Programs > Turn Windows features on or off
Uncheck “Remote Differential Compression” click OK.
Restart computer, see if that helps with copying files.
P.S.
Just found this as suggested by a MS Tech:
"Go to command prompt and type:
netsh int tcp set global autotuninglevel=disabled
then hit enter."
Run command prompt as Admin (right click & select)
I apologise flooding you with suggestions, because I don't want you to give up on Win7. It really is an excellent operating system, again my apology.
I have been to your country, Sydney, Brisbane, Darwin and loved it, I''l be back someday.
