|So I installed SP3 on two different machines and so far so good. Although I did notice one tiny problem after installation. Windows Live Messenger seemed to give me an error when it first launches. It says something about a problem with the Windows Live Messenger package. But of course a simple uninstall and reinstall of Windows Live Messenger did solve this issue.
Other than that, everything seems to run smoothly. Of course SP3 didn’t add any new functionality or features. It’s simply a package containing all updates released after SP2.
Anyway, the only change you will see is a new service pack number under the System Properties window.