I'm new to this forums but I've used it as a non-member for many years now.
I would suggest disabling your network connection. Unplug your network router would be simplest.
(Download any tool links on another PC and load them to a Flash Drive, That way you wont need internet while you do this)
I would then run Microsoft Malicious Software Removal Tool <link below>
(To Admins, If you need to remove the links I post ? That is fine. I'm sorry if use of then is not allowed)
Choose the system you are running and DL & run.
Once the program completes I would Remove/Uninstall Firefox and Chrome in "Programmes and Features"
Next I would go download Spybot Search&Destroy (Free Edition) you can use Explorer to download it.
Then attempt to reinstall Chrome. Make sure you download it from Google directly.
When u do a search for Chrome, other site links post in your lookup that are "dirty" or contain spyware, malware, viruses and junk you really don't want.
Make sure you read the actual download link path. It should Read < https://support.google.com/chrome/answer/95346?hl=en >
Clickable link >>>> https://support.google.com/chrome/answer/95346?hl=en
I would also take a look at your Startup programs.
Simply, To run MSConfig, open the Start menu and type “msconfig.exe” (without the quotes) in the Search box /Enter.
Tic the tab labled "Startup" then select the processes you do NOT want to run.
Clk "Apply" and close.
Restart your PC
Here is a link to "MSConfig" it is not from this site and The Admins may remove it (Idk if linking other sites is allowed...sorry if it's not)
I hope this helps.
Best of luck to fixing your troubles....
Edited by Platypus, 06 January 2015 - 05:06 AM.
Deleted reference to spam post