Right click acting up

First off, I got a brand new GS70 laptop with Bit-defender security, so I know my issue isn't some sort of hardware/virus issue. What happened was I upgraded from Windows 8 to 8.1, and I don't know if this can create an issue, but I didn't uninstall Startisback before I did.

Anyhow, whenever I right click in the file explorer (My Computer, a USB stick, or left click on the file shortcut), it thinks,... says it's not responding... and quites the whole desktop for and second, and closes all my open files. I have to say I'm at a loss for what to do, and would really appreciate any help I can get.

sounds odd.. try a repair of windows? (after removing startisback and security) then check.. then put them back in

Thanks, I'll try.