I use an iMac and also have a Windows 7 PC. I think one of my computers has a router, and I need to share my network with my laptop. How can I do this?
Connect your Internet to the router and Config the router, then Your house will be filled with ur Network .
best wifi software
You can use the netsh utility from the CMD program. Just look for Windows 8 share wifi cmd on google and you will see.
Using ICS (Internet Connection Sharing)
Foolproof Way to Get Mac Internet Sharing to Work on Windows PC
On your iMac go into "System Preferences > Sharing" and check "Internet Sharing". The rest is pretty much self explanatory...
Share your connection from:select the source of your internet, probably "Ethernet"
To computers using: check "Wi-Fi"
* This requires your iMacs internet coming from any connection but Wi-Fi e.g. if it's hooked up via cable.
For Windows I suggest reading the following articles: