What is Network Awareness?
NCSI stands for Network Connectivity Status Indicator. It is part of what Microsoft calls Network Awareness. Microsoft purposed Network Awareness to provide network-connectivity information to services and applications running on Windows Vista and Windows 7.
How does it Work?
At the beginning of a new network connection, NCSI performs a DNS lookup on www.msftncsi.com. It then requests http://www.msftncsi.com/ncsi.txt. This file is a plain-text file containing the phrase ‘Microsoft NCSI’. If it can’t access it, it will do a DNS lookup of dns.msftncsi.com to determine whether or not the internet connection is functioning properly.
How to Disable Network Awareness
Under the Internet key, double-click
EnableActiveProbing, and then in Value data, type:
0. The default for this value is
1. Setting the value to
0 prevents NCSI from connecting to a site on the Internet during checks for connectivity.
Windows Vista Keyboard shortcuts
Keyboard shortcuts can make it easier to interact with your computer because you don’t need to use the mouse as often.