Searchgol.com is classified as browser hijacker, which main purpose is to promote advertisements and generate traffic by hijacking your browser.
To completely remove Searchgol.com from your PC, follow these steps:
Step #1: Remove Searchgol.com from your control panel.
Step #2: Remove Searchgol.com from your browser.
Step #3: Clean invalid registry entries and leftovers.
Step #1: Uninstall Delta Search that supports Searchgol.com from your computer.
To do so, Go to Start, Navigate to Control Panel, Programs, Select Uninstall a program
Then, Select to Uninstall one by one, BitGuard, Delta Chrome Toolbar, and Delta toolbar.
Step #2: Remove Search-Gol Search and Searchgol.com homepage from your web browser.
For that, You will need to reset your web browser settings:
To reset Internet Explorer settings see this link: http://windows.microsoft.com/en-us/internet-explorer/reset-ie-settings
To reset Mozilla Firefox settings see this link: https://support.mozilla.org/en-US/kb/reset-firefox-easily-fix-most-problems#w_how-do-i-reset-firefox-to-its-default-state
To reset Google chrome settings see this link: https://support.google.com/chrome/answer/3296214
Step #3: Clean invalid registry entries and leftovers
After removing Searchgol.com redirect virus, there are invalid registry entries left in the computer, these junk files will slow down your computer or leave hidden infections in it.
It is highly recommended that you get rid of these junk files using a TRUSTED Registry Cleaner.
Here is a list of recommended registry cleaners: Registry Cleaners Review