If it is installed, no need to install it again. This is a glitch that happens once in a while.
Best.
If it is installed, no need to install it again. This is a glitch that happens once in a while.
Best.
See if any of these will hide it.
Try control - clicking on it and choose hide.
Yosemite Banner (2) Even though it says Mavericks, still applies
Try re-indexing Spotlight.
"OS X NTP Security Update" installs multiple times