Newsgroups are a collection of ongoing discussions (threads) that cover a particular topic and are available to anyone who has access to a news reader or even just a web browser. It is a lot like sending an email message, except for the fact that anybody with access to the same newsgroup can read your message.
Newsgroups are great forums for sharing your own knowledge and experience, as well as seeing what others have to say. When using a newsgroup, you can either post a message in response to an ongoing conversation thread, or pose your own questions.
When you post a question, many thousands of people may possibly read your post, and you are generally assured of getting an answer quickly if the newsgroup is active. Sometimes you may have to wait a day or so, especially during weekends and holidays.
Accessing newsgroups can be done with Microsoft Outlook Express.
Microsoft Public News Server:
Server: msnews.microsoft.com
Microsoft Newsgroups Website
Group: microsoft.public.windows.hpc
Group: microsoft.public.windows.64bit.general
Group: microsoft.public.windows.powershell
Group: microsoft.public.windows.networking
How-to Setup Newsgroups in Outlook Express
1. From the main Outlook Express Window select Tools -> Accounts.

2. Click on Add -> News.

3. Type in the name you want other people to see when you post newsgroup messages or send an email, click the Next button to continue.

4. Type in your email address that you want replies to your newsgroup postings to go to, you masy want to diguise your email address like so, email_name@NOSPAM.domain_name, click the Next button to continue.

5. Type in msnews.microsoft.com for the News (NNTP) server, click the Next button to continue, click the Finish button.

6. Click the Close button at the bottom of the page.

7. Outlook Express will then ask "would you like to download newsgroups from the news account you added?", click Yes. Once the download is done you'll see the newsgroup subscriptions page and list of available newsgroups at Microsoft.

8. Type "hpc" in the "Display newsgroups which contain:" field. microsoft.public.windows.hpc should now be the only group showing in the list and it should be highlighted. Click on Subscribe. Clear the "Display newsgroups which contain:" to see the full list again. You may choose to subscribe to other newsgroups that interest you such as microsoft.public.windows.networking.

9. When you have finished selecting newsgroups click the OK button.

10. You should then see msnews.microsoft.com in the Folders Window in Outlook Express. Any Newsgroups you've subscribed to will show up below the msnews.microsoft.com line in the Folders Window. You can then select the newsgroup and read and/or post messages.