I’m going to guess that USB is infected.

Download MCShield from Here. It will come in handy.

THEN

Go Here

Download and Run: OTL, Malwarebytes Anti-Malware & aswMBR

Attach the following log files in your next reply.

  • OTL.txt
  • Extras.txt
  • aswMBR.txt
  • Malwarebytes.txt