Reset Browser Settings changes only the browsers, browser items, and Windows network or policy options selected on the reset screen. Review every checkbox before starting; the available choices can differ by browser and by what is installed on the PC.
Browser items you can select
The tool can restore the home page and search engines and can reset add-ons, cache, cookies, history, policies, and shortcuts. Selected browsers are closed during the reset. Choosing cookies can sign you out of websites, while choosing history removes the corresponding browsing record. An add-on reset can disable or remove unwanted extensions, so reinstall only extensions you recognize afterward.
Windows settings you can select
System options can include the HOSTS file, proxy settings, DNS cache, Internet zone settings, system policies, and security settings. These choices are useful when adware or malware changed traffic routing or browser policy, but they can also remove intentional company or custom network settings.
Protect your data before reset
Bookmarks and saved passwords are not listed as reset items, but back up or synchronize important browser data before any repair. Save work because selected browsers will close. On a managed computer, ask the administrator before resetting proxy, policy, Internet zone, or security settings.
For the complete procedure, see How to reset browser settings.