Start with removing Chrome completely.
Unless you installed a developer version yourself, malware has changed it.
This mean that anything can be installed without you knowing it.
Unless you did this yourself, malware has changed your Chrome version into the Development Build. Among other things this allows malware to install any extension it wants. We need to resolve this.
If you have bookmarks, let’s save them by exporting them - Export Bookmarks
Then I need you to go Google Sync and sign into your account
Scroll down until you see the “Stop and Clear” button and click on the button. At the prompt click on “Ok”
Now we need to uninstall chrome via control panel.
Note: When asked about user data or settings you must remove this also so please check the box.
We will re-install on completion
CAUTION : This fix is only valid for this specific machine, using it on another may break your computer
Open notepad and copy/paste the text in the quotebox below into it: