Turn your Windows 7 into an Wireless Hotspot

Now every one using Internet and most of user have Wireless network in home and Windows 7 are used by many users. so the user can turn Windows 7 Computer as Wireless Hotspot.
First make sure that you got Lap or Desktop with Wireless card that not currently connected if your computer is wired ti network then your wireless card should be free and so we can use it.
Now open Network and Sharing Center from Control Panel.

Under the Change your networking settings->Set up a new connection or network click tat it opens a new dialog box i.eWizard with various options

In tat wizard at the last there wil be Set up a wireless ad hoc (Computer-to-Computer) network and press Next.

Now a new wizard as shown as pic below appears click Next

Now enter your desired name and password for your network and if you wish Check the Save this network and Click Next

It will take some time to setting up

Now you can see your network is added to Quick Select Wireless network list

Now its time to enable the sharing through network card. to do it open Network and Sharing Center and on left side select the Change Adapter Settings and it will shows your network connection in list and select Local Area Connection and right click and navigate to Properties and select Properties.
Now You will see two tabs networking and sharing and goto sharing tab and check the Allow other network users to connect through this computer's Internet connection ans select your wireless network

At this point you should be able to connect wireless device to your ad hoc network and access the internet.