Hi,
It may be a left over Start-up Entry from Malware that has been removed by your Security Programs.
Download, install, update and scan your System with the free version of Malwarebytes AntiMalware:
http://www.malwarebytes.org/products/malwarebytes\_free
@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
If problem remains after scanning, take those Entries out of Start-up:
How to manage Startup Programs/applications in 8.1:
How to Manage Startup Applications in Windows 8 or 10
"How To Use the System Configuration Tool in Windows 8/8.1"
http://www.7tutorials.com/how-use-system-configuration-tool-all-its-awesomeness
"Using System Configuration (msconfig)"
http://windows.microsoft.com/en-us/windows/using-system-configuration#1TC=windows-8
You can also use this free Program to do that, too:
"Autoruns for Windows v12.03"
http://technet.microsoft.com/en-us/sysinternals/bb963902.aspx
Cheers.