If you do not own a key, please buy one. The cost of a legitimate key ($30–$80 for a lifetime license from third-party resellers) is far cheaper than recovering from identity theft caused by a pirated keylogger.

Here are the top legitimate sources for Office 2016 keys in 2025:

| Source | Pricing | Risk Level | Notes | | :--- | :--- | :--- | :--- | | Amazon (Sold by Amazon) | High ($150+) | Zero | New retail boxed copies. | | StackSocial | Low ($30-$50) | Low | Sells OEM keys (non-transferable to new PCs). | | GVGMall (Microsoft Partner) | Medium ($60) | Low | Instant digital delivery; volume keys. | | CDW / Newegg Business | High ($200+) | Zero | Best for companies needing audit trails. |

Avoid: eBay listings for $5 "lifetime keys." These are likely MSDN or Visual Studio subscription keys that will be revoked within months.

Microsoft Office 2016 is copyrighted software. Using a key found in a public directory without paying for a license is software piracy. While individual users are rarely sued, your ISP may flag your activity, and your Microsoft account could be banned. For businesses, fines can reach $150,000 per instance of pirated software.

If you have a broken computer that had Office 2016 installed, plug the hard drive into a working PC via a USB adapter. Use ProduKey and select "Load external Registry hive" to point to the old drive's C:\Windows\System32\config\SOFTWARE file.

If Office 2016 is currently installed on your computer (even if it says "unlicensed" or "trial expired"), the key is still in your Windows Registry.

If you previously ignored this advice and ran an "Office 2016 activator" from an "index of" directory, you need to perform incident response immediately.