Fixing "get-aduser" Error: "The Search Filter Cannot be Recognized"


Are you a system administrator who is familiar with PowerShell and Active Directory? Have you ever encountered an error when using the get-aduser cmdlet?

If you get the error "The search filter cannot be recognized," then this document will provide you with a step-by-step guide on how to fix it. Additionally, there is an FAQ section to provide quick answers to common questions about the get-aduser cmdlet.


When using the get-aduser cmdlet in PowerShell, you might receive the error "The search filter cannot be recognized." This is due to a syntax issue when trying to search for user accounts in your Active Directory environment.


The solution to this problem is to properly construct the search filter you are using with get-aduser. This can be done by referencing the available properties of the get-aduser PowerShell cmdlet and modifying your search string accordingly.

Identify the properties you need to use to search for the user you are looking for. The easiest way to do this is to use the Get-Help cmdlet on get-aduser. This will show you the available properties you can use.

Construct the search string with the available properties you have identified. It is important to note that some of the properties use a wildcard “*” for searching. When using wildcards, it is important to make sure you are using it correctly.

Run the get-aduser cmdlet with the constructed search string.

If the error persists, try searching for a different user account. This should help you to determine the issue with your initial search string.


Q: What is the get-aduser cmdlet?

A: Get-aduser is a PowerShell cmdlet that is used to search for user accounts in Active Directory.

Q: What type of syntax do I need to use when constructing my search filter?

A: You need to use the valid LDAP syntax when constructing your search string. LDAP stands for Lightweight Directory Access Protocol and it is used by Active Directory to query information.

Q: What other cmdlets are available to search for user accounts in Active Directory?

A: There are other cmdlets available such as Get-ADObject and search-adaccount. These cmdlets can be used to search for user accounts in your Active Directory environment.


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