I got my 4 running on Win7 64bit with CGminer,it was too easy!! I'm only mining altcoins,not BTC,so my power draw is 7 watts each or so.
Download CGminer 3.7.2 from here:
http://minersource.net/pages/miner-setup-guidesIt's down the page abit,heres the link:
http://cdn.shopify.com/s/files/1/0399/4181/files/cgminer-3-7-2-gridseed-windows.7z?154Put it on your desktop & open it,look for LTC only bat file,right click it & use EDIT to change the pool info to your pool,hit SAVE.
Next get Zadig USB driver & install it,be sure your miners are plugged in & powered up:
http://cdn.shopify.com/s/files/1/0399/4181/files/Gridseed-Windows_Instructions.txt?154Unplug all USB cables to miners before you fire up CGminer,its hotplug install for some reason.
Now to run CGminer double click the LTC only bat file,after its up & running,give it a minute & then just plug your USB cables in (I use a USB hub & just plug it in with my miners all plugged to it) & CGminer should see & run your miners.
This is what the bat file looks like:
cgminer.exe --scrypt -o stratum+tcp://YOUR POOL:PORT-u USERID -p PASSWORD --gridseed-options=baud=115200,freq=850,chips=5 --hotplug 0
pause
I added this to make mine work:
cgminer.exe --scrypt -o stratum+tcp://YOUR POOL:PORT -u USERID -p PASSWORD --gridseed-options=baud=115200,freq=850,chips=5 --hotplug 30 --usb :10
pause
I got that info from here:
http://gridseedasic.com/content/how-useGood luck,it took a few tries & restarts for it to "take" for me,so try that if things act up
EDIT: You'll need to uninstall the USB drivers you used for BFGminer