Uninstall & Reinstall Issues

How to Reinstall Adobe Acrobat Pro 2017 with a Registered Serial Number

Amos GikundaAmos Gikunda Oct 28, 2026 869 views

Question details

The user needs to reinstall Adobe Acrobat Pro 2017 but is unable to proceed because the system reports that the product's serial number is already registered.

How to Reinstall Adobe Acrobat Pro 2017 When the Serial Number Is Already Registered
Product
Adobe Acrobat Pro 2017
Device & OS
not provided
Scenario
Attempting to reinstall a previously purchased perpetual license of Adobe Acrobat.
Observed behavior
The installer or registration portal rejects the serial number, displaying an error that the product code is already in use by an account.
Before you start

Ensure you have access to the email address and password for the Adobe account you originally used to register your Acrobat Pro 2017 purchase.

Solution 1Recommended

Download Directly from Your Registered Adobe Account

Since perpetual licenses are registered only once, you can bypass the serial number prompt by redownloading the software directly from your linked account.

Adobe requires perpetual licenses to be registered a single time. Re-entering the serial number on a new installation triggers an 'already in use' error.

1
Visit the Adobe download page

Navigate to the official Adobe 'Download Pro or Standard versions of Acrobat DC | Non-subscription' page.

2
Sign in to your account

Click 'Sign In' and enter the exact Adobe ID (email address) that you used when you first purchased or registered Acrobat Pro 2017.

3
Locate your product

Go to your account's registered products or order history to find Acrobat Pro 2017.

4
Download and install

Click the download link corresponding to your operating system and run the installer. The software will authenticate via your account rather than requiring the serial number again.

Download Directly from Your Registered Adobe Account
Account Verification: As long as you are signed into the correct Adobe ID, the installer will automatically recognize your previously registered license.
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  1. 1. Download the software: Visit the official WPS Office website and download the free installer for your operating system.
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Frequently Asked Questions

Why does Adobe say my Acrobat serial number is already in use?

Adobe perpetual licenses only need to be registered once. If you attempt to enter the serial number again during a reinstallation on a new device or after resetting your PC, the system flags it as already claimed by your Adobe account.

Can I transfer my Acrobat 2017 license to a new computer?

Yes, you can transfer your license. You must first deactivate the software on your old computer by opening Acrobat and selecting Help > Sign Out. Then, install it on the new computer and sign in with your Adobe ID.

Where can I find the download link for non-subscription Acrobat versions?

You can find the official installers on Adobe's 'Download Pro or Standard versions of Acrobat DC | Non-subscription' page, which is accessible through the Adobe Help Center.