Remove www1.delta-search.com

Guide to remove Delta Search from Firefox:

1. Open Mozilla Firefox. Go to Tools and select Add-ons.
2. Select Extensions. Uninstall the following extension: Delta to remove Delta Toolbar.
3. Click the small magnifier icon at the right top corner. Select Manage Search Engines... from the list.
4. Select anything associated with Delta Search and click Remove button. Click OK to apply the changes.
5. Go to Tools and select Options. Under the General tab reset the startup homepage.

Guide to remove Delta Search from Google Chrome:

1. Open Chrome and click on the Google Chrome Menu icon (the three lines on the right hand side of the screen). Then click on Settings.
2. Under On startup, choose the option Open a specific page or set of pages. Then click on Set Pages and delete Delta Search page from the list by clicking the small "x" icon beside it. Then click OK.
3. Back on the settings screen under Search click on Manage search engines. If you see Delta Search as a default search, click on a different option and then click Make Default. Then click on Done.
4. Once again back on the settings page, click on Extensions on the upper left side of the screen. Remove any Delta Search extension that you do not want from the list by clicking on the small trash can icon.

Guide to remove Delta Search from Internet Explorer:

1. Select Control Panel from the Start Menu. From the control panel select Uninstall a Program. Find Delta Search toolbar on IE in the list, select it and click on the Uninstall button near the top of that window.
2. Open Internet Explorer. Click on the Menu Icon (the small gear) and select Manage Add-ons.
3. From Manage Add-ons menu, Select Toolbars and Extensions. Uninstall everything related to Delta from the list that you do not want by clicking on the program name and then clicking on the Disable button on the bottom right of the screen.
4. Next, Select Search Providers from the left hand side of the Manage Ad-ons screen. First of all, choose a search engine and make it your default search provider (set as default). Then select anything associated with Delta Search and click Remove button to uninstall it (lower right corner of the window). Finally, click Close.

Credit to: Virus Removal Videos