|This is a problem I believe everyone has faced at some point.|
It's a form of Malware on your PC. If you have any Anti-Virus/Malware software I'd suggest doing a full scan.
If you don't have any Anti Malware software on your PC, I'd suggest one of these.
Although that doesn't give you live protection, only a scan.
I'd recommend Comodo for all your security, It's free and does a good job.
If you have any problems with anything, use another machine to google "search engine redirect malware" or something similar.
There are thousands of pages and solutions.