Final answer:
The software tool that will protect against viruses and spyware on a Windows PC is anti-virus software. There are many options available, such as Norton, McAfee, and Avast.
Step-by-step explanation:
The software tool that will protect against viruses and spyware on a Windows PC is anti-virus software. This type of software is specifically designed to detect, prevent, and remove malicious software, such as viruses and spyware, from infecting a computer.
There are many different anti-virus software options available for Windows PCs, including well-known programs like Norton, McAfee, and Avast. These programs continuously scan the computer for any signs of malware, actively block suspicious files and websites, and provide regular updates to keep up with the latest threats.
By installing and regularly updating an anti-virus software, users can significantly reduce the risk of their Windows PC being infected by viruses or spyware, ensuring the security and privacy of their personal information.