If you need to create a Wi-Fi access point, there's no need to go mad looking for the options in Windows. With programs like Virtual Router converting your PC into a virtual router that allows you to share your Internet signal with other devices is easy.
Create a wireless access point.
One of the changes included from Windows 7 onwards, within the networks section, is the Wireless Network Hosted technology. It is a functionality that allows any PC with a Wi-Fi adapter or pendrive to become a wireless access point at the same time that it acts as a client of another network. With Virtual Router you can take advantage of this particularity without further complications.
A completely secure virtual router
With Virtual Router you can share the Internet from a PC (whether it has a Wi-Fi connection, LAN, Cable Modem, mobile, etc.) with any other device capable of carrying out a wireless connection. The connection established is encrypted with WPA2, therefore, it's totally secure.
If you have to do without your router for a time or you want to increase its signal strength, download Virtual Router for free.