Microsoft did not release an official "Office Professional 2017" version; the suite jumped from Office 2016 Office 2019
The most reliable way to use Office for free is through the web-based version. You don't need a product key; you only need a free Microsoft account Included Apps : Word, Excel, PowerPoint, and OneNote. microsoft office professional 2017 product key free
For Outlook and Access, you need ($249.99) or Professional 2021 ($439.99). Compare this to risking malware for a fake key—the peace of mind is worth it. Microsoft did not release an official "Office Professional
: Sign in to your Microsoft Services & Subscriptions page to view keys associated with your account. Compare this to risking malware for a fake
– Some websites sell stolen MAK (Multiple Activation Key) keys for $10-$20. Microsoft regularly blacklists these, and your Office will revert to “unlicensed” within weeks. You lose your work and money.
Unofficial versions often cannot connect to Microsoft servers for critical security patches, leaving your computer vulnerable to exploits. Safe & Legal Ways to Use Microsoft Office for Free