It’s worth mentioning from the very beginning that this service pack wasn’t created by Microsoft, and if you’re still on Windows XP, you have all the reasons in the world to consider upgrading to a newer version of the operating system.
What’s new in version 3.0
Windows XP SP4 Unofficial version 3.0 and 3.1a, which both debuted this week, come with all the POSReady updates released by Microsoft until January 2016 (since Windows XP no longer receives support, updates for the POSReady version can also be installed on this version and address some of the security holes that might exist in the operating system).
At the same time, the version update also brings fixes for a number of issues reported by users in the previous releases, as well as patches for the false positive malware warnings that some users have been getting in version 2.
Additionally, if you install this new version of the service pack, you also get live installation, proper integration of the latest time zone update, as well as fixes for DxDiag registry errors.
Keep in mind, however, that even if you install this service pack, your computer won’t be fully protected anymore because some of the vulnerabilities found in Windows XP won’t be patched. On the other hand, with the criticism going on these days against Windows 10, and with Windows XP running so well on old hardware, it’s not that hard to see why so many people want to use the latter.