Microsoft has just re-released a security bulletin, MS14-045, for all currently supported builds of Windows, after a previous version of the patch was released, and later pulled from circulation, earlier in August.
The MS14-045 bulletin, which was released to fix some kernel related issues, was offered as part of an overall update to Windows 8.1 that was supposed to add some small features to the OS. The bulletin was also released for Windows Vista and Windows 7. In a blog post, Microsoft said:
"A small number of customers experienced problems with a few of the updates. As soon as we became aware of some problems, we began a review and then immediately pulled the problematic updates, making these unavailable to download. We then began working on a plan to rerelease the affected updates."
The patch is currently available via Microsoft's automatic Windows Update feature. There's no word yet if the other Windows update files that were pulled a few weeks ago are now available to download again. As soon as we get more information, we will post an update.