msiexec /i "AcroPro.msi" /qn /norestart (Note: The .msi file name may vary. Look for AcroPro.msi , AcrobatPro.msi , or Setup.msi )
Leave a comment with the exact text from your %temp%\Adobe Setup Log.txt file. The specific line preceding error 11020 will tell us exactly which registry key or file is failing. This article is for educational purposes. Adobe Acrobat XI Pro is a registered trademark of Adobe Inc. Always use licensed software. adobe acrobat xi pro 11020 install
Open Command Prompt as Administrator (Right-click Start > Terminal (Admin)). msiexec /i "AcroPro
Wait 3-5 minutes. The /qn flag runs it silently. Check C:\Program Files\Adobe\Acrobat 11.0\ for the executable. This article is for educational purposes
Extract your Acrobat XI Pro installation files to a folder on your desktop (e.g., C:\AcrobatXI_Setup ).
If this succeeds, you’ve bypassed error 11020 entirely. Error 11020 frequently points to a corrupted MSI database. Use the Windows Installer CleanUp utility (legacy but effective).