i am using college wifi system, it used by proxy setting and username and password for that,

in the time of microsft updation I cant access internet, how to setup proxy for that??????

While downloading updates, you cant access internet.. correct ? 

Hi,

Was your issue resolved?

If no, please provide the detailed information of your issue for analysis.

If the problem happened after Windows Update, let us know which update.

You could set the proxy as below:

1. Open Internet Explorer.        

2. Click the Tools button, and then click Internet Options.

3. Click the Connections tab, and then click LAN settings.

4. Select the Use a proxy server for your LAN check box.

5. In the Address box, type the address of the proxy server.

6. In the Port box, type the port number.

7. If your network requires separate proxy addresses for different services, such as HTTP, HTTPS, or FTP, click the Advanced button, and then type the individual proxy server addresses to use.

8. When you are finished making changes, click OK until you return to Internet Explorer.