monsters,
Here's what you do to uninstall it:-
*Open CONTROL PANEL. (Switch to "Large Icons")
*Open "PROGRAMS AND FEATURES".
*On the top left side of this window, click "VIEW INSTALLED UPDATES". -- a list of ALL installed updates will show up.
*On the search box in the top right corner of this window, TYPE "KB3022345" (without the quotes).
KB3022345 will show up.
*RIGHT CLICK ON KB3022345 AND CLICK "UNINSTALL".
Close this window.
**Immediately after uninstall completes, Open "Windows Updates" in control panel, and check for updates again.
Windows update will offer KB3022345 for download again...
Right click on KB3022345 in the list of optional updates, and click "HIDE UPDATE".
Remember this number by heart KB3022345.. Every time you download optional updates, make sure KB3022345 is NOT selected. Once you complete step ** , Windows Update should NOT offer KB3022345 any more, but I've read somewhere that KB3022345 randomly shows up as an optional update even after the user chooses to hide it, no idea why..
I too would like a proper explanation about what this service does.
NOT from FANBOYS DEFENDING EVERYTHING MICROSOFT, but from a real Microsoft employee.
It collects HUGE amounts of data in Windows 10. Since it's the exact same service, chances are it collects the same huge amount of data in Windows 8.1 as well.
These fanboys will point out that my original citation was actually a page written for Windows 10, but won't point out to any source confirming that this service does a different thing in Windows 8.1.