When you right-click My Computer, click Manage, and then attempt to start Disk Administrator, you may receive one of the following error messages:
Access to Disk Manager on computername is denied. You do not have access rights to the service.
Failed connection to the Logical Disk Management Service. You do not have access rights to the service.
This behavior occurs when the access in Distributed Component Object Model (COM) Configuration (Dcomcnfg) properties for the default authentication level is changed from Connect to Default.
To resolve this behavior, follow these steps:
On the toolbar, click Start, click Run, and then type:
On the Default Properties tab, change the Default Authentication Level to Connect.
Restart your computer.
The preceding error message can also be generated if under the Default Security tab of Dcomcnfg, another owner is listed for Allow Access Permissions. This situation can occur with some installations of Oracle software.
To resolve this behavior, perform the following steps:
Click Start, click Run, type dcomcnfg, and then click OK.
Click the Default Security tab.
Under Default Access Permissions, click Edit Default.
Click Add, click Administrator, set the type of access to "Allow Access", and then click OK.
Click OK, and then click OK.
This procedure can give the administrator access again.
NOTE: Some Oracle software may change the owner of this key during the installation process.
The third-party products that are discussed in this article are manufactured by companies that are independent of Microsoft. Microsoft makes no warranty, implied or otherwise, regarding the performance or reliability of these products.