Can a website automatically run something on your computer without downloading it?

Yes, a website can trigger an automatic download when you visit it, but modern browsers have protections in place. Typically, the file will be saved to your Downloads folder, but it won't run or open by itself. Dangerous file types like .exe or .zip often trigger warnings or are blocked.

Even if the file doesn't run automatically, it can still pose a risk if the user opens it later. Therefore, it's important to keep your browser updated, avoid suspicious websites, and check your download settings to configure your browser to ask you before downloading files.

Here's how to make Microsoft Edge ask before downloading files:

1. Open "Settings and more (Alt + F)" and select "Settings";
2. In the left panel, click on "Downloads";
3. Find the option labeled "Ask where to save each file before downloading" and toggle it on.

Feel free to ask back any questions.

Hi. I'm David, and I'm happy to help you.

No, a website cannot automatically run a file on your computer without it first being downloaded and executed by you. Modern operating systems and browsers are designed with permission controls that prevent websites from executing code directly on your machine.

However, even though websites cannot run files directly, they can still exploit vulnerabilities or trick users.

Some examples:

• A website might disguise a file as something harmless (like a PDF or an image). If a user opens it, they could run malicious code.
• If you install a suspicious browser extension, it might have permissions to run scripts or access files.
• JavaScript on a website can't run local files, but it can interact with browser APIs in dangerous ways if permissions are violated.

So, you're protected against autorun as long as you don't download or open suspicious files, keep your browser and operating system updated, and avoid installing untrustworthy extensions. But the internet is full of clever traps, so staying alert is crucial.

Feel free to ask back any questions.

Depends on your web browser and its settings.

And whether you have a main brand AV/Security and not the free win Defender.