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I have removed Acrobat XI from the other computers it was installed on but it still is telling me that the serial number is invalid. How can I have any installations active deactivated without having to search all the pc's in my office?
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if you had an activation count issue, the error message would say just that.
an invalid serial number means you're using the wrong number with the wrong product, Error: "The serial number is not valid for this product" | Adobe Creative Suite
if you have an upgrade, you'll need two serial numbers.
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