How to Remove 1-855-472-9850 Popup/Browser Locker Permanently?

I got a windows system alert popup which told me that my computer has been blocked and my private and financial data is at risk and asked me to call 1-855-472-9850 to fix it. This popup keeps coming even if I reboot my computer. How do I get rid of it?

What is 1-855-472-9850 Popup?

1-855-472-9850 Popup is a fake bsod (blue screen of death) popup or a fake system alert popup. It has the ability to mess up your internet browsing and even your entire computer. It will scare that your computer has been blocked and your private and financial data is at risk, so as to urge the innocent users to the bogus tech support. Once you notice your computer is affected by this annoying popup, you should take immediate actions to resolve it. Here is a screenshot of 1-855-472-9850 popup.