The MANIFEST files (.manifest) and the MUM files (.mum) that are installed for each environment are listed separately in the "Additional file information for Windows 8 and Windows Server 2012" section. MUM and MANIFEST files, and the associated security catalog (.cat) files, are extremely important to maintain the state of the updated components.

Only one instance of Wusa.exe runs when you use Wusa.exe. Wusa.exe does not change the contents of the updates in .msu files. The Windows Update infrastructure performs the required actions according to the contents of the update. When you start Wusa.exe in interactive mode, a welcome screen displays high-level information about the update.

The shell extension is hosted in Windows Explorer. However, the Explorer.exe process stops responding (hangs) when you open Windows Explorer. Cause. This problem occurs because of a code defect in MFC. Resolution. A security update fixes this issue. To download the update, visit the following Microsoft Web site:

The shell extension is hosted in Windows Explorer. However, the Explorer.exe process stops responding (hangs) when you open Windows Explorer. Cause. This problem occurs because of a code defect in MFC. Resolution. A security update fixes this issue. To download the update, visit the following Microsoft Web site:

The shell extension is hosted in Windows Explorer. However, the Explorer.exe process stops responding (hangs) when you open Windows Explorer. Cause. This problem occurs because of a code defect in MFC. Resolution. A security update fixes this issue. To download the update, visit the following Microsoft Web site:

The shell extension is hosted in Windows Explorer. However, the Explorer.exe process stops responding (hangs) when you open Windows Explorer. Cause. This problem occurs because of a code defect in MFC. Resolution. A security update fixes this issue. To download the update, visit the following Microsoft Web site:

The shell extension is hosted in Windows Explorer. However, the Explorer.exe process stops responding (hangs) when you open Windows Explorer. Cause. This problem occurs because of a code defect in MFC. Resolution. A security update fixes this issue. To download the update, visit the following Microsoft Web site:

The shell extension is hosted in Windows Explorer. However, the Explorer.exe process stops responding (hangs) when you open Windows Explorer. Cause. This problem occurs because of a code defect in MFC. Resolution. A security update fixes this issue. To download the update, visit the following Microsoft Web site:

Fixes an issue that occurs when Windows Explorer is hosting a shell extension that was created by using Microsoft Foundation Class (MFC) and the Explorer.exe process stops responding (hangs).

The shell extension is hosted in Windows Explorer. However, the Explorer.exe process stops responding (hangs) when you open Windows Explorer. Cause. This problem occurs because of a code defect in MFC. Resolution. A security update fixes this issue. To download the update, visit the following Microsoft Web site: