Go to the official Download Windows 10 page.

Searching for a might seem like a quick fix, but the risk of identity theft and system failure far outweighs the cost of a legitimate key. Stick to the official Microsoft ISOs to ensure your data stays private and your hardware runs at peak performance.

However, downloading an operating system via BitTorrent is one of the riskiest moves you can make for your digital security. Here is why the search for a torrented OS usually leads to trouble, and how you can get Windows 10 Pro legitimately—often for free or very cheap. The Hidden Dangers of Windows 10 Torrents