First download MalwareBytes and get it up to date. Make sure your antivirus program is up to date. Then boot to Safe Mode and do a full system scan with your antivirus and MalwareBytes. Start an elevated command prompt and issue this command: sfc /scannow.
Good luck.
Whenever I go to some websites, some errors happen in the background and disable aspects of a website sometimes. Like whenever I go to Yahoo This shows up:
http://i.gyazo.com/d5a11128f4764e4b288e2be16e685ed6.png
If I go to inspect element, this shows up:
http://i.gyazo.com/17009552a488d3da5136424ae619e
50e.png
This seems to persist in all the browsers I used, and another computer on the same network seems to be fine.
Help!

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