Microsoft KB Archive/836926

= Updates from the Windows Update Web site are not installed and an &quot;Error 0x80070005: Access is denied&quot; error message is logged to the Windows Update.log file =

PSS ID Number: 836926

Article Last Modified on 3/24/2004

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The information in this article applies to:


 * Microsoft Windows Update, when used with:
 * the operating system: Microsoft Windows XP

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Important This article contains information about modifying the registry. Before you modify the registry, make sure to back it up and make sure that you understand how to restore the registry if a problem occurs. For information about how to back up, restore, and edit the registry, click the following article number to view the article in the Microsoft Knowledge Base:

256986 Description of the Microsoft Windows Registry



SYMPTOMS
When you try to install updates from the Microsoft Windows Update Web site, you may receive a message that the updates were not installed successfully on your computer. The Windows Update.log file may contain a message that is similar to the following message: Error IUENGINE See iuhist.xml for details: Install finished (Error 0x80070005: Access is denied.)



CAUSE
This issue may occur if one or more of the following conditions are true:  One or more mapped network drives are configured on your computer. However, you do not have permissions to access one or more of the mapped network drives. Incorrect NTFS file system permissions are set on the :\WUTemp folder on your hard disk. Incorrect permissions are set on following subkey in the Windows registry:





RESOLUTION
To resolve this issue, use one or more of the following methods, depending on your situation.

Method 1: Disconnect the mapped network drives
Disconnect the mapped network drives that are configured on your computer, and then connect to the Windows Update Web site to install the updates.

Method 2: Verify the permissions that are set on the WUTemp folder
Verify that the correct permissions are set on the :\WUTemp folder, and then connect to the Windows Update Web site to install the updates. If you have more than one hard disk on your computer, verify the permissions that are set on the WUTemp folder on each hard disk. To verify the permissions that are set on the :\WUTemp folder, follow these steps.

Note Because there are several versions of Microsoft Windows, the following steps may be different on your computer. If they are, see your product documentation to complete these steps.  Start Windows Explorer, and then locate the :\WUTemp folder. Right-click the WUTemp folder, and then click Properties.</li> Click the Security tab.</li> Verify that the following groups are assigned the Full Control permission to the WUTemp folder:  Administrators</li> Power users</li> Users</li></ul>

If the Allow check box next to Full Control is not selected for any one of these groups, assign Full Control permission to the group. To assign the Full Control permission to a group, follow these steps: <ol> In the Group or user names list, click the name of the group. If the group is not in the list, add the group. To do so, follow these steps: <ol style="list-style-type: lower-alpha;"> Click Add.</li> In the Select Users, Computers, or Groups box, type the name of the group that you want to add, and then click OK.</li></ol> </li> In the Permissions for  list, select the Allow check box next to Full Control, and then click OK.</li></ol> </li></ol>

Method 3 : Verify the permissions that are set for Windows Update in the registry
Warning If you use Registry Editor incorrectly, you may cause serious problems that may require you to reinstall your operating system. Microsoft cannot guarantee that you can solve problems that result from using Registry Editor incorrectly. Use Registry Editor at your own risk.

Verify that the correct permissions are set on the following registry subkey, and then connect to the Windows Update Web site to install the updates that you want:

To verify the permissions that are set for Windows Update in the registry, follow these steps: <ol> Click Start, and then click Run.</li> In the Open box, type regedit, and then click OK.</li> Locate, and then click the following registry key:

</li> On the Edit menu, click Permissions.</li> Verify that the Administrators group and the System account are assigned the Full Control permission and the Read permission. If the Allow check box next to Full Control or Read for the Administrators group or for the System account is not selected, assign the Full Control permission and the Read permission to the accounts. To assign the Full Control permission and the Read permission, follow these steps: <ol style="list-style-type: lower-alpha;"> <li>In the Group or user names list, click the name of the group or of the user account.</li> <li>In the Permissions for  list, select the Allow check boxes next to Full Control and Read, and then click OK.

Note The Allow check boxes next to Full Control and Read may be unavailable (or appear dimmed).</li></ol> </li> <li>Quit Registry Editor.</li></ol>

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MORE INFORMATION
For additional information about how to troubleshoot Windows Update issues, visit the following Microsoft Web site:

http://v4.windowsupdate.microsoft.com/troubleshoot

Keywords: kbprb KB836926

Technology: kbOSWinSearch kbOSWinXP kbOSWinXPSearch kbWinUpdate kbWinUpdateSearch

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