If you are using IE, you may have this problem, when you try to open a new browser window only to find about:blank is what will greet you. You try to change it back but either your Internet Options are greyed out or you change the page back, only to find next time you start Internet Explorer the dreaded About:blank has returned.
About:blank is a special page within most browsers. It is simply a benign page that’s built in to your browser. It’s not something to “get rid of”.
It’s the page that your browser displays when it has nothing else to display. That’s all.
The problem, of cours