27 and counting, at least it has slowed down to 1 a day

Any thoughts Stu

I thought there may have been more feedback on this one. It appears to be just me and Stu. I can't even uninstall it as it's not in my "Uninstall Updates" list, but still downloading daily

Couple of methods to try under the known issues section here:-

https://support.microsoft.com/en-us/kb/3119142

The other option is to run SFC/SCANNOW at an elevated command prompt.

This fixes any corrupt System files

 The issue mentioned by the OP requires nothing more than the easy fix I've noted. It's not an issue with corrupt system files, just the C++ 2012 install itself. Thankfully.

Thanks Stu. That fixed it, simple when you know how.

Thanks also to robcreid and cisconz for your suggestions

Most welcome. Thankfully, as it turned out, it wasn't all that complicated. (Unlike a computer I had here last week that wouldn't run many windows services and the registry was an absolute mess. Had to be basically manually repaired)