How do you cancell out fake windiws error prompts that download malware?

in my experience in computing i found that there are viruses (in this case malware) that make your system show a fake windos error prompt (usually telling you that there is spyware or viruses in the computer although there isn't) and that you need to download the offered software (in which i find suspicous windows doesn't just offer free software through an error prompt for free) and i also found out that if you try to click don't install is triggers virus installation and if you click the X in the corner it will also trigger a virus installation

it downloads rogue software that automatically installs itself into your comuter (it is malware that disquises itself as a spyware protection program, virus protection program, or a registry cleaner) and acts as it is scanning your system and shows fake threats and says that if you want to get rid of them you have to buy there product.

how do you cancell these you whenever you encounter a promt that seems like it will download one

How do you cancell out fake windiws error prompts that download malware?virus

NEVER PRESS OK, CANCEL OR X FROM THE TOP RIGHT CORNER.

when you will se that window, don't press any button, open task manager and force closing the browser.

usually, this type of addware come in your computer using cookies. you should set your browser to block all cookies and accept cookies ONLY from the sites you have accounts and need to log in, like yahoo.com.