Which of the following is NOT a legitimate source for obtaining setup files or device drivers?

Obtaining setup files or device drivers from the manufacturer's official website is a reliable source, as these files are directly provided by the creators of the hardware or software. This ensures that the files are verified, up-to-date, and compatible with the specific devices they are intended for.

Operating system built-in features can also be a legitimate source for drivers. Many operating systems come equipped with a library of drivers that allow users to install necessary components easily without needing to search for them separately.

Recognized reputable forums can serve as helpful resources where experienced users share verified links or provide advice on driver installations. Participation in these communities can lead to discovering credible sources that the community has vetted over time.

However, third-party sites, while useful, can sometimes be unreliable. They may host outdated or modified files that could contain malware or be incompatible, posing risks to the user's system. This potential for unverified or harmful content makes them a less reliable option for obtaining setup files or device drivers compared to the other identified sources.