
It simplifies everyday PDF tasks and includes many productivity enhancements when working with PDFs from your desktop. The slightly longer answer is this: Acrobat 9 is not supported on Windows 10.Acrobat Pro 2020 is the latest perpetual desktop version of Acrobat. The short answer is you cannot run Acrobat 9 on Windows 10 - it's not supported. The text below is from the post I made on the Adobe support forum. I thought I would post the resolution to this problem.

Adobe Acrobat 9 Pro Requirements Software Will Not
This software will not operate without activation. Internet Explorer 11 Firefox (ESR) or Chrome DVD-ROM drive required (if installing from disc) Windows Server 2008 R2 (64 bit), 2012 (64 bit), 2012 R2 (64 bit), or 2016 (64 bit) Windows 7 (32 bit and 64 bit) Windows 8 (32 bit and 64 bit) or Windows 10 (32 and 64 bit) As of January 9, 2017, Adobe Creative Suite (CS6 or earlier) perpetual license applications such as.
Adobe Acrobat 9 Pro Requirements Mac OS X V10
Additional fees or subscription charges may apply. Online Services are available only to users 13 and older and require agreement to additional terms of use and Adobe’s online privacy policy (see Online Services are not available in all countries or languages, may require user registration, and may be discontinued or modified in whole or in part without notice. Safari 8.0 for Mac OS X v10.10, Safari 9.0 for Mac OS X 10.11, Safari 10.0 for macOS v10.12, Safari 11.0 for macOS v10.13 (browser plug-in for Safari is supported on 64-bit Intel processor only)* This product may integrate with or allow access to certain Adobe or third-party hosted online services (“Online Services”). Mac OS X v10.10, Mac OS X v10.11, macOS v10.12, or macOS v10.13
