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POWriting to Registry (HKEY_LOCAL_MACHINE) in XP
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Id
1421064
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1422173
AnswerCount
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CommentCount
5
CommunityOwnedDate
CreationDate
2009-09-14T11:47:29.530
FavoriteCount
1
LastActivityDate
2009-09-15T09:35:31.650
LastEditDate
2009-09-15T07:55:20.697
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173075
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173075
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PostTypeId
1
Score
2
ViewCount
1486
LastEditorDisplayName
text
Body
I am trying to modify a registry key that I have been told controls whether write-caching is enabled on particular hard drives. The key should be: <code>HKEY_LOCAL_MACHINE\System\CurrentControlSet\Enum\IDE\<DiskName>\<SerialNo>\Device Parameters\Disk\UserWriteCacheSetting</code> However I keep having problems when trying to create this key (as it doesn't exist by default). If I try to open up the <code>...\Device Parameters\Disk\</code> with write access I get a SecurityException error; "Requested registry access is not allowed". Now I have added the <code><requestedExecutionLevel level="requireAdministrator" uiAccess="false" /></code> flag to my manifest file so as to ensure I have admin access, but I'm still not having any luck. Any ideas would be great! <pre><code> static void Main(string[] args) { RegistryKey myKey = Registry.LocalMachine.OpenSubKey("SYSTEM\\CurrentControlSet\\Enum\\IDE\\"); foreach (string driveManafacturer in myKey.GetSubKeyNames()) { RegistryKey driveKey = myKey.OpenSubKey(driveManafacturer); foreach (string driveID in driveKey.GetSubKeyNames()) { RegistryKey driveIDKey = driveKey.OpenSubKey(driveID, true); string driveType = (string)driveIDKey.GetValue("Class"); if (driveType == "DiskDrive") { RegistryKey tempKey = driveIDKey.OpenSubKey("Device Parameters\\Disk\\", true); if (tempKey == null) { tempKey = driveIDKey.CreateSubKey("Device Parameters\\Disk\\"); tempKey.SetValue("UserWriteCacheSetting", 0x0); } } } } return; } </code></pre>
Tags
<c#><registry><securityexception>
Title
Writing to Registry (HKEY_LOCAL_MACHINE) in XP
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