Guard KB951847 will not install and continues to show Note: When you perform the upgrade on the spot, I suggest you back up your data. For more information about how to back up and restore the registry, click the following article: Then you can restore the registry if a problem occurs. For added protection, back up the registry before you edit it. Therefore, make sure that you proceed with caution. However, serious problems can occur if you modify the registry incorrectly. Note: this section, method, or task contains steps that tell you how to modify the registry. You cannot install some programs or updates MFC Package security update Microsoft Visual C++ 2005 Service Pack 1 I suggest you to download and install the update to the clean boot. Note: Follow step 7 clean boot KB929135 article to reset the computer in normal mode. Disable the antivirus protection that temporarily to restore a computer.

Note: Microsoft does not recommend that you disable the antivirus protection in most conditions.

How to troubleshoot a problem by performing a clean boot in Windows Vista or in Windows 7 When you perform the clean boot make sure you disable any firewall and antivirus on the computer running software and then try to install the updates. The problem with Microsoft Windows Update is not working I suggest you to run the fixit from the following link: don't you make changes to the computer before the show?

Cant install kb2538242