Quit Acrobat if it's running.
This document explains how to uninstall and reinstall Acrobat on your computer. (For other installation-related help, follow the appropriate link above.)
How to uninstall and reinstall Acrobat on Windows
You can easily uninstall Acrobat from the Windows Control Panel.
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Open the Run command box - press the Windows key and the R key. 
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In the Run command box, type Control Panel and press OK. 
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In the Control Panel, select Programs > Program and Features. 
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From the list of installed programs, select Adobe Acrobat and click Uninstall. 
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Click Yes in the confirmation dialog. After Acrobat is uninstalled, restart your computer. 
You can easily download and install your version of Acrobat. Follow the version-specific link to see the steps:
How to uninstall and reinstall Acrobat on macOS
You can easily uninstall Acrobat using the Acrobat uninstaller. (If you face any problem during the uninstallation, use the Acrobat Cleaner tool.)
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Go to Finder > Applications > Adobe Acrobat, and double click the Acrobat Uninstaller. 
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The uninstaller asks you to select the product. Select Adobe Acrobat and click Open. 
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In the confirmation dialog, click OK. 
You can easily download and install your version of Acrobat. Follow the version-specific link to see the steps:
Visit the Cleaner tool page, download the latest tool specific to your operating system (Windows/macOS), and then follow the steps listed on the page to remove Acrobat.