Ways to Resolve the Microsoft Exchange Server Error 4999

Microsoft Exchange Server is a widely used email and calendaring platform that is used by organizations of all sizes. However, like any other software, it can encounter errors that can disrupt the normal functioning of the Exchange Server. One such error is the Exchange Server Error 4999, which can occur due to various reasons such as corrupted database files, incorrect installation of Exchange Server, or hardware issues. In this article, we will discuss in detail what this error is, its causes, and most importantly, how to fix Microsoft Exchange Server Error 4999.

What is Microsoft Exchange Server Error 4999?

The Microsoft Exchange Server Error 4999 is an error code that appears when the Microsoft Exchange Information Store service fails to start on an Exchange Server. This error is generally accompanied by an error message that says “Failed to Initialize the Microsoft Exchange Information Store service. Error 4999.” This error prevents users from accessing their emails, calendars, and other Exchange data.

What Causes Microsoft Exchange Server Error 4999?

There can be several reasons why the Microsoft Exchange Server Error 4999 occurs. Some of the most common causes are:

  1. Corrupted Database Files: If the Exchange Server database files are corrupted or damaged, it can lead to the occurrence of Error 4999.
  2. Incorrect Installation of Exchange Server: If Exchange Server is not installed correctly, or if there are any issues with the installation process, it can cause the Microsoft Exchange Server Error 4999.
  3. Hardware Issues: Hardware issues such as failing hard drives or faulty RAM can cause this error to occur.
  4. Outdated or Missing Service Packs: If the Exchange Server is not updated with the latest service packs, it can lead to the occurrence of Error 4999.
  5. Security Software Interference: Security software installed on the Exchange Server can sometimes interfere with the functioning of the Microsoft Exchange Information Store service, causing this error.

How to Fix Microsoft Exchange Server Error 4999?

Now that we know what causes the Microsoft Exchange Server Error 4999 let us take a look at the various methods to fix this error.

Method 1: Repair Corrupted Database Files

The first step in fixing Error 4999 is to repair any corrupted database files. To do this, you can use the Eseutil tool that comes with the Exchange Server. Follow the below steps to use Eseutil:

  1. Open the Command Prompt on the Exchange Server.
  2. Navigate to the bin folder of the Exchange Server installation directory.
  3. Type the following command to repair the database files:

Eseutil /p <database name>

  1. Press Enter and wait for the repair process to complete.
  2. Restart the Microsoft Exchange Information Store service.

Method 2: Reinstall Exchange Server

If the issue persists even after repairing the database files, you may need to reinstall Exchange Server. Follow the below steps to reinstall Exchange Server:

  1. Open the Control Panel on the Exchange Server.
  2. Click on Programs and Features.
  3. Locate Microsoft Exchange Server in the list of installed programs and select Uninstall.
  4. Follow the on-screen instructions to uninstall Exchange Server.
  5. Once the uninstallation is complete, restart the server.
  6. Reinstall Exchange Server using the installation media.
  7. Restart the Microsoft Exchange Information Store service.

Method 3: Update Exchange Server

If the Exchange Server is not updated with the latest service packs, it can cause the Microsoft Exchange Server Error 4999. Follow the below steps to update Exchange Server:

  1. Download and install the latest service pack for Exchange Server.
  2. Restart the server.
  3. Restart the Microsoft Exchange Information Store service.