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MySQL Users are gone (lost) after a MySQL 5.5 update in MS Windows (Doc ID 2346803.1)

Last updated on JULY 13, 2021

Applies to:

MySQL Server - Version 5.7 and later
Information in this document applies to any platform.

Symptoms

After Updating MySQL 5.5 to a newer version using the .msi installer (for example: mysql-advanced-5.5.58-winx64.msi) all the existing MySQL users and gone, and it's not possible to login into MySQL even using the root account

Changes

 

Cause

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In this Document
Symptoms
Changes
Cause
Solution
References


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