In an ideal world, virus scanning would occur before the download. That's the idea behind VTzilla, a Firefox add-on that scans files for viruses before you download them.

I simply use a file scanner to check for known threats like malware, viruses, and more. You can even use them to scan suspicious files already sitting on your computer.

You can scan individual files and folders using Windows Defender via File Explorer Context Menu, PowerShell, or Command Prompt in Windows 11/10.

This guide will show you how to check if a program exe file is malicious or not before installation. Using a scanner with multiple antivirus engines is the best way!

Dr.Web will download the file to their servers, scan it for viruses and report back whether or not it's clean. Dr.Web is free to use, works with Firefox, Internet Explorer and Opera.

Click "Scan for Viruses" and then double-click "Scan My Computer" to perform a virus scan on the PC. Norton AntiVirus will automatically remove any detected infections.

If you'd prefer not to pay for an antivirus suite, Bitdefender's free virus scanner is a good basic option.

Microsoft includes tools for scanning for viruses and spyware in Windows 10. Here's how to use find and use Windows Defender in the operating system.

Anti-viruses are suspicious of executable files in particular and scan them whenever activated: if the checksum data contains an inaccurate record for an executable file, the anti-virus program ...