Error message when you try to update Windows Defender on a Windows Vista-based computer: Error found Code 0x80240029

SYMPTOMS

When you try to update Microsoft Windows Defender on a Windows Vista-based computer, you receive an error message that resembles the following:

Error found: Code 0x80240029

CAUSE

This problem occurs if the SoftwareDistribution folder is corrupted.

RESOLUTION

To resolve this problem, log on to the user account by using administrator privileges and then use one of the following methods:

Method 1

1. Exit all open programs. To do this, follow these steps:

a. Click Start, type Run in the Start Search box, and then press ENTER.
b. Type msconfig, and then click OK.The System Configuration Utility appears.
c. On the BOOT tab, click to select the Safe boot check box and the Minimal check box, and then click OK.
d. Restart the computer when you are prompted.Note After you finish step 2, start the System Configuration Utility again. Click to clear the Safe boot check box on the BOOT tab, and then click OK to restart the computer.
2. Rename the SoftwareDistribution folder. To do this, follow these steps:

a. Click Start, type %windir% in the Start Search box, and then press ENTER.Note In this step, %windir% represents the path of the Windows system folder. Typically, C:\Windows is the path of the Windows system folder.
b. Locate and then right-click the SoftwareDistribution folder, and then click Rename.
c. Type SoftwareDistribution.old, and then press ENTER.
d. Restart the computer.

Method 2

1. Exit all open programs. To do this, follow these steps:

a. Click Start, click Search, and then type Services.
b. Double-Click Services.
c. In the Services list, locate Windows Management Instrumentation, and then right-click to select Stop.Note Do not close the Services window.
d. Open Windows Explorer.
e. Locate and then delete the Repository folder in C:\%windir%\System32\wbem.
f. Return to the Services window, locate Windows Management Instrumentation, and then right-click to select Restart.
g. Exit all programs.
h. Restart the computer.

APPLIES TO
  Windows Vista Home Basic
  Windows Vista Home Premium
  Windows Vista Ultimate
  Windows Vista Business
  Windows Vista Enterprise

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Microsoft Knowledge Base Article

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