|Firstly get hold of CCleaner Slim, install it and run it:|
This should clear your temporary files and it is worth running from time to time.
Secondly install and run MalwareBytes:
Let it fix all it finds.
Thirdly download the ADWCleaner file and Save it somewhere. Double click the saved file to run it. After running the Scan I have found it quite safe to let it run the Clean which remove all unwanted toolbars. There is an option to keep anything if you so wish but this is normally unnecessary.
Finally install SpywareBlaster:
If you keep this small program onboard it is a good preventative as long as you update it every two weeks. It does not use any resources.
All of the above are free and will not clash with your normal Antivirus program.
See how you get on and keep all logs in case further action is necessary.
Always pop back and let us know the outcome - thanks