I keep hearing random music and ads while using my laptop

When ever I'm on the laptop, every 20 minutes or so, music or an ad or a news feed will start playing. I exit out of all the progams I'm using and it keeps playing for a good 30 seconds before it starts again. I have even logged out but it keeps going there as well. I checked the sound mixer once to see if it was anything i knew but it just say "Source Uknown".
Please help
Thank you
2 answers Last reply
More about hearing random music ads laptop
  1. Hmm you might have a virus. Is it like the same thing every single time? Try a virus scan.
  2. Virus always can cause many weird problems to our computer. You should run your anti-virus tool quickly.
    Perhaps, after this incident, you'd better to download another efficient anti-virus tool:
    http://en.wikipedia.org/wiki/Antivirus_software
    http://en.wikipedia.org/wiki/Comparison_of_antivirus_software
    http://www.techrepublic.com/blog/five-apps/five-free-antivirus-tools-for-windows/1110
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