how to stop users to access the network pc's

Hi I have a small infrastructure of exchange server 2010 , and pc's having windows 7 32 bit and 64 bit  OS , now the issue is that I want to stop my users to click on the network option shown at lest side so that they wont be able to see the list of network pc's
but want there all share folders and drives should work as it is now .
please advice
Who is Participating?

[Product update] Infrastructure Analysis Tool is now available with Business Accounts.Learn More

I wear a lot of hats...

"The solutions and answers provided on Experts Exchange have been extremely helpful to me over the last few years. I wear a lot of hats - Developer, Database Administrator, Help Desk, etc., so I know a lot of things but not a lot about one thing. Experts Exchange gives me answers from people who do know a lot about one thing, in a easy to use platform." -Todd S.

What you want is already the default behavior. Did you change the defaults?
What I am talking about: by default, network discovery is disabled and the firewall is on - network neighborhood will be empty when populated with win7 computers on default settings.
sanjeevkmrsAuthor Commented:
yes by default it is disabled but I have enabled it . what to be done now ? as  some of the folders in same network are shared and my users are using them
For share access, you don't need network discovery, nor you need file and printer sharing.
Only the computer hosting the share needs the file and printer sharing services. So disable both on all clients and all is as you want it.
Determine the Perfect Price for Your IT Services

Do you wonder if your IT business is truly profitable or if you should raise your prices? Learn how to calculate your overhead burden with our free interactive tool and use it to determine the right price for your IT services. Download your free eBook now!

sanjeevkmrsAuthor Commented:
how should I disable network discovery , please guide through
You mean, you turned it on but you don't remember where you did that? Because it can be turned off at the same spot.
open network and sharing center and turn it off: Control Panel\All Control Panel Items\Network and Sharing Center\Advanced sharing settings ->network discovery

If you need to deploy this via policy, use a start script for your domain:
netsh advfirewall firewall set rule group="network discovery" new enable=no
There's a difference in not showing the network list of computer, and correctly setting up all the access rights. Hiding it when having wrong access rights is useless, they'll still be able to connect to it (even if the user doesn't know, malware will be able to use it). Showing the list, but having the correct access rights doesn't really matter, as the correct access rights will not allow them to connect to those computers anyway (so malware also doesn't have access).

Experts Exchange Solution brought to you by

Your issues matter to us.

Facing a tech roadblock? Get the help and guidance you need from experienced professionals who care. Ask your question anytime, anywhere, with no hassle.

Start your 7-day free trial
sanjeevkmrsAuthor Commented:
It's more than this solution.Get answers and train to solve all your tech problems - anytime, anywhere.Try it for free Edge Out The Competitionfor your dream job with proven skills and certifications.Get started today Stand Outas the employee with proven skills.Start learning today for free Move Your Career Forwardwith certification training in the latest technologies.Start your trial today
Windows 7

From novice to tech pro — start learning today.