I am trying to built a code which disables or enabled windows update by clink on the button

Question

1.00/5 (2 votes)

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I got the error
Object reference not set to an instance of an object.
WSUS.SetValue("NoAutoUpdate", 0)

What I have tried:

Private Sub Button3_Click(sender As Object, e As EventArgs) Handles Button3.Click

Dim WSUS As RegistryKey = Registry.CurrentUser.OpenSubKey("HKEY_LOCAL_MACHINE\Software\Policies\Microsoft\Windows\WindowsUpdate\AU", False)
WSUS.SetValue("NoAutoUpdate", 0)
MsgBox("Windows Update is now Enabled", vbOKOnly)

End Sub

Posted 25-Sep-17 19:59pm

Member 10616186

Updated 26-Sep-17 9:15am

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Richard MacCutchan · Answer 1 · 2017-09-25T21:49:00

Solution 1

VB

Registry.CurrentUser.OpenSubKey("HKEY_LOCAL_MACHINE\Software\Policies\Microsoft\Windows\WindowsUpdate\AU", False)

HKEY_LOCAL_MACHINE is not a subkey, and is certainly not in the path of Registry.CurrentUser.

Posted 25-Sep-17 21:49pm

Richard MacCutchan

Comments

Member 10616186 26-Sep-17 5:19am

Pl confirm is there any option to disable & enable Automatic Windows Update

Richard MacCutchan 26-Sep-17 6:25am

enable Automatic Windows Update - Google Search[^]

Richard Deeming · Answer 2 · 2017-09-26T09:15:00

As pointed out in solution #1, HKEY_LOCAL_MACHINE is a registry hive. It is not a sub-key of HKEY_CURRENT_USER.

If you want to write to the key, then you need to pass True to the writable parameter.

VB.NET

Dim WSUS As RegistryKey = Registry.LocalMachine.OpenSubKey("Software\Policies\Microsoft\Windows\WindowsUpdate\AU", True)

NB: Since you're trying to modify the machine configuration, your application will need to run elevated. Add a manifest to your application, and set requestedExecutionLevel to requireAdministrator.

Making Your Application UAC Aware[^]