Access Denied HKEY_LOCAL_MACHINE

Question

I'm getting: Access Denied HKEY_LOCAL_MACHINE

What is the wrong with this code?

var key = "SOFTWARE\\Microsoft\\Expression\\Encoder\\4.0";

using (var registryKey = Registry.LocalMachine.OpenSubKey(key))
{
    if (registryKey == null)
    {
        using (var newKey = Registry.LocalMachine.CreateSubKey(key))
        {
            CheckInstallKey(newKey);
        }
    }
    else
    {
        CheckInstallKey(registryKey);
    }
}

Error:

score 1 · Answer 1 · answered May 29 '17 at 16:16

1

run your code as administrator

HKLM is just for local system and administrators

HKCU is for regular users

answered May 29 '17 at 16:16

Николай Смирнов

36
4

how to do that? – Ahmed Alayat May 29 '17 at 16:21
@AhmedAlayat run Visual Studio by right-click and choose "Run As Administrator" – Николай Смирнов May 29 '17 at 16:25
[another solution](https://stackoverflow.com/questions/698193/vista-vb-net-access-denied-while-writing-to-hkey-local-machine?rq=1) – Николай Смирнов May 29 '17 at 16:27
thank you but is there any way to run only this code as admin not all of my program? – Ahmed Alayat May 29 '17 at 16:31
1

no, administrative priveleges given to process. – Николай Смирнов May 29 '17 at 16:34
so if my program's user want to open it does he has to run it as admin – Ahmed Alayat May 29 '17 at 16:36
or you may store your data in HKEY_CURRENT_USER, it is no admin priveleges requeres – Николай Смирнов May 29 '17 at 17:48
i have tried that but another .dll file can't load – Ahmed Alayat May 29 '17 at 18:02
why do you cheating system writing keys about encoder, if it is absent in system? just recommend user to install and give him link – Николай Смирнов May 29 '17 at 18:07

Access Denied HKEY_LOCAL_MACHINE

1 Answers1