Unable to open registry subkey On windows 10 PC using C#

Sujeet Suman

I unable to open programmatically registry subkey on windows 10 PC.

I am getting exception by using below code.

using (RegistryKey keys = Registry.LocalMachine.OpenSubKey(a_Path, RegistryKeyPermissionCheck.ReadWriteSubTree, RegistryRights.FullControl))

{

// Doing some operation like reading some value

}

Exception:

Requested registry access is not allowed.

Can any body help me to come out.

7 Replies

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Amit Gupta9y ago
Donot use any Registry permission check, the mentioned key can be openned normaly without any overload

using (RegistryKey keys =Registry.LocalMachine.OpenSubKey(a_Path))
{
//Read your subkeys here
}
0
Sujeet Suman9y ago
Amit I am trying to open below Registry Sub Key.

SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Uninstall

0
Amit Gupta9y ago
Then there might be problem with your overloading of reading all subkey tree, there are some keys that are specially used by system and not available for other users for writing purpose

Try this
Using (RegistryKey keys =Registry.LocalMachine.OpenSubKey(a_Path, true))

True - if it required to write on the key else false.

Can you share your value of a_path
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Sujeet Suman9y ago
Dear I am already using this.
<requestedExecutionLevel level="asInvoker" uiAccess="false" />
but still I am getting exception.
This issue coming on Windows-10 only.
On other os it's working fine. Like Windows-7, Windows-xp, Windows-8
0
Amit Gupta9y ago
For running your program in elevated mode you need to add a config file to give permission to that file. Check below link fyi

https://stackoverflow.com/questions/2818179/how-do-i-force-my-net-application-to-run-as-administrator

Moreover, for security purpose Microsoft has implemented UAC for accessing and modifying sensitive information from Windows Vista. Hence, it requires your program to run in an elevated mode for full permission.
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Sujeet Suman9y ago
First thanks Amit for your reply.
I am agree with you. But in my pc (Windows 10 system) user having Full Control access right.
So is there any way(through C#) to run my windows application as admin.
0
Amit Gupta9y ago
Hey

Accessing registry key of local machine requires some permission, try running your program as an administrator.
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