It's one of those stories you just can't make up. More power to Ed Bott at ZDNet:
"If you want to be a Windows expert, one of the most important lessons to learn is skepticism. Whenever someone claims to have a magic fix-it tool or a MakeRocketShipGoFast registry tweak, you should keep it away from any system you care about until you can confirm it does what it says it does...One of the first red flags for me was the information embedded in the file itself. It has a copyright date of 2015 and the copyright holder is Microsoft Mobile Oy...That's the former Nokia division, which has been almost completely dismantled at this point...After a little more digging, I can report that this tool is indeed being distributed from Microsoft's servers. But it has nothing to do with the Anniversary Update and was apparently built by a single tech, independently and without the blessing of the Windows Support group...
The trouble is, the tool does far too much to be unleashed on an unsuspecting public with no documentation.
One engineer who looked closely at what this utility was doing called it "a sledgehammer." Another support rep who also examined how it works was reportedly "frightened by some of the things this is doing. If you're tempted to download and tun this thing, my advice is to steer clear. If you've already run it, good luck." - Ed Bott
So...steer clear of this software which appears to be Nokia recovery software at its base. It's unauthorized, and doesn't really do what it says it does.
Now for the good news! A fix (genuine) for the "missing clock" problem after the Anniversary Update. Turns out this huge honkin' update screws with settings...and that's not really a new thing for big updates, arrarently. While it could be a borked install, it could be something a lot simpler: https://www.infopackets.com/news/9916/how-fix-windows-10-clock-missing
Sources:
http://www.zdnet.com/article/unauthorized-mislabeled-microsoft-support-tool-leaks-could-cause-more-trouble-than-it-cures/
http://www.neowin.net/news/unauthorized-windows-self-healing-tool-app-could-cause-more-harm-than-good
https://www.infopackets.com/news/9916/how-fix-windows-10-clock-missing