OptOut10 (Google Chrome)
 
 

    Look familiar?  Here's how to get rid of that nasty Windows 10 advertisement on MSN in Google Chrome:
  1. Install the User-Agent Switcher for Chrome by Glenn Wilson.
  2. Triple-click the line of text below to select it, and press [Ctrl]+[C] to copy it to your clipboard.

    Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/47.0.2526.106 Safari/537.36

  3. Visit www.msn.com (or whatever site is giving you the blocking Windows 10 advertisement).
  4. Right-click the new Chrome UA Spoofer toolbar button, and click Options.
  5. Under New User-Agent Name type: Chrome W10
  6. Under New User-Agent String, press [Ctrl]+[V] to paste the text you copied back in step 2.
  7. Fill out the remaining fields: Chrome | Replace | W10
  8. Click [Add].
  9. In the sidebar on the left, click Permanent Spoof list
  10. Assuming that "www.msn.com" is the site displaying the Windows 10 ad: Under Domain, type: www.msn.com
  11. Under User-Agent String, select Chrome W10.
  12. Click [Add].
  13. Go back to the MSN page and refresh.  The Windows 10 ad should be gone.
  14. Repeat steps 3–4 and 9–13 for every other site that is exhibiting this behavior.

I hope this helps someone!  Comments or suggestions?  Feel free to leave them here.