Error: "Windows Installer is not installed properly' & error code Ox641 for Windows Update.

Original title: my "Windows Installer is not installed properly.

I can't update my XP computer because my "Windows Installer is not installed properly. All facilities Microsoft Update failed (code Ox641). I wouldn't change anything. Help!

Hi Mark,

Did you do any hardware changes or software on your computer before this problem?

You can follow this link & check if the problem persists:

How to troubleshoot common Windows Update, Microsoft Update and Windows Server Update Services installation

Reference: You can not install updates from Windows Update, Microsoft Update, or by using the auto update after a repair install of Windows XP after you install Windows XP SP3 immediately after a new installation of Windows XP SP2 or

Because of Windows Installer, you can follow this link & check if the problem persists:

Error message "Could access the Windows Installer Service" when you install the application

Hope the helps of information.

Tags: Windows

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