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KB Article: http://support.microsoft.com/kb/2642495
INTRODUCTION
When attempting to install applications you may receive the following error:
"The Windows Installer Service could not be accessed. This can occur if the Windows Installer is not correctly installed. Contact your support personnel for assistance."
For this issue on Windows XP or Windows Server 2003 see the following article:315346 (http://support.microsoft.com/kb/315346) Error message when you try to add or remove a program on a computer that is running Windows XP or Windows Server 2003: "The Windows Installer service could not be accessed"
i cant install important updates,i keep getting and error message.
trying to install important updates but keep getting 643 error code.
meu windus esta baixo como devo fazer com que ele aumente
Can not install important updates or any other programs....keep getting the error message. Attempted to use the repair options on the Microsoft site, even attempted to repair the registery with what they provided and still hasn't fix the problem. Any solution????
When trying the fixit for you file, the message "The Windows Installer service could not be accessed" shows up.
In Services (Local), there is no Windows Installer to right click for Properties.