Get list of local computer usernames in Windows

Question

How can I get a list of local computer usernames in windows using C#?

sclarson · Accepted Answer · 2011-03-09T15:25:42.660

31

using System.Management;

SelectQuery query = new SelectQuery("Win32_UserAccount");
ManagementObjectSearcher searcher = new ManagementObjectSearcher(query);
foreach (ManagementObject envVar in searcher.Get())
{
     Console.WriteLine("Username : {0}", envVar["Name"]);
}

This code is the same as the link KeithS posted. I used it a couple years ago without issue but had forgotten where it came from, thanks Keith.

edited Mar 09 '11 at 15:25

answered Mar 09 '11 at 15:18

sclarson

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"without issue" -> in my experience WMI has a failure rate > 0.5%, so be careful if integrating in a customer facing app – eglasius Aug 10 '12 at 08:43
2

Warning: This command will take a very long time if you are connected to a large network. You can test this command in airplane mode to find the expected results. – Mike Oct 10 '17 at 22:30
Is there any way to do this without wmi? – jjxtra Jan 09 '22 at 15:59

VansFannel · Answer 2 · 2018-01-16T10:29:26.247

10

I use this code to get my local Windows 7 users:

public static List<string> GetComputerUsers()
{
    List<string> users = new List<string>();
    var path =
        string.Format("WinNT://{0},computer", Environment.MachineName);

    using (var computerEntry = new DirectoryEntry(path))
        foreach (DirectoryEntry childEntry in computerEntry.Children)
            if (childEntry.SchemaClassName == "User")
                users.Add(childEntry.Name);

    return users;
}

edited Jan 16 '18 at 10:29

answered Apr 30 '14 at 07:34

VansFannel

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Great! Have you tested it when the machine is no directory member? – marsh-wiggle Apr 15 '20 at 07:58
@marsh-wiggle No, sorry. – VansFannel Apr 16 '20 at 11:20

score -1 · Answer 3 · answered Mar 09 '11 at 15:16

-1

One way would be to list the directories in C:\Documents and Settings (in Vista/7: C:\Users).

answered Mar 09 '11 at 15:16

yellowblood

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1

tnx, but doesn't seem very standard! :D – MBZ Mar 09 '11 at 15:20
3

...it also assumes that they've ever logged in. – Roger Lipscombe Mar 09 '11 at 15:24
Is there a way in C# to get only the users who have ever logged in? – Juan Rojas Jan 23 '20 at 23:46
This answer shows the users who are logged in my windows using interop https://stackoverflow.com/a/132774/403999 – Juan Rojas Jan 24 '20 at 00:42

score -3 · Answer 4 · answered Mar 09 '11 at 15:17

-3

The following are a few different ways to get your local computer name:

string name = Environment.MachineName;
string name = System.Net.Dns.GetHostName();
string name = System.Windows.Forms.SystemInformation.ComputerName;
string name = System.Environment.GetEnvironmentVariable(“COMPUTERNAME”);

answered Mar 09 '11 at 15:17

James

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these would return the Current username. I want all of them. – MBZ Mar 09 '11 at 15:18

Get list of local computer usernames in Windows

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