Cannot Clear a "Fix Now" message

Yesterday afternoon I ran my monthly scans & backup to my external backup device.  Since doing so, I have had a message under PC Tune Up:  "Your tune up has not completed...3 items need your attention.  Click Fix Now"  When I click Fix Now I get the following messages:  1) Internet Explorer Temporary Files - another instance of this task is running. Please wait to finish.

2) Windows Temporary Files - another instance of this task is running.  Please wait to finish.  3) Internet Explorer History Files - another instance of this task is running.  Please wait to finish.

 

I've been getting these messages for well over a day now.  It's like these scans are stuck.  I cannot figure out how to fix this.  I have looked @ changing tune up settings but can seem to find help there.

 

I'm not a real teckie & I'm totally lost.  ;-((  How do I clear this up...it's never happened before.

 

Please Help!  Thanks so much