cannot write to the registry key

Question

I am getting error cannot write to the registry key when i am trying to save my keys in the registry .

//Here is my code .

Note : I tried to run as an Admin

Answer 1

try this......someone may find useful....

using System.Security;
using System.Security.AccessControl;
using Microsoft.Win32;

string user = Environment.UserDomainName + "\\" + Environment.UserName;

RegistryKey rk = 
RegistryKey.OpenBaseKey(RegistryHive.LocalMachine, RegistryView.Registry64).
OpenSubKey("SOFTWARE",true);    

RegistrySecurity rs = new RegistrySecurity();

rs.AddAccessRule(new RegistryAccessRule(user,
            RegistryRights.WriteKey | RegistryRights.ReadKey | RegistryRights.Delete,
            InheritanceFlags.None,
            PropagationFlags.None,
            AccessControlType.Allow));
rk = Registry.CurrentUser.CreateSubKey("RegistryRightsExample", 
            RegistryKeyPermissionCheck.Default, rs);

Answer 2

if (null == skms)            
{             
   skms = Registry.LocalMachine.OpenSubKey("SOFTWARE",true);              
   RegistryKey key = skms.CreateSubKey(
          RegistryKeyName, RegistryKeyPermissionCheck.ReadWriteSubTree);      
}

This is the answer for my question .

Answer 3

Try this:

RegistryKey skms = SoftwareKey.OpenSubKey(RegistryKeyName, true);

The second parameter should be set to true if you need write access to the key.

-EDIT-

On 64-bit system, you can try this (if you are using .Net 4):

private readonly RegistryKey SoftwareKey = 
    RegistryKey.OpenBaseKey(RegistryHive.LocalMachine, RegistryView.Registry64).
    OpenSubKey("SOFTWARE");

Answer 4

You are probably falling foul of registry redirection. Perhaps you have a 32 bit process on a 64 bit system and writes to HKLM\Software get redirected to HKLM\Software\Wow6432Node.

You need to open the 64 bit key directly, or compile for AnyCPU.