Error 1084 appears when we try to uninstall a program from our computer. Error terminates the un-installation process. Here is an error message: The Windows Installer Service could not be accessed , This can occur if the windows Installer is not correctly installed Follow the tips mentioned below to fix error 1084:

Install Latest Version of Windows Installer
Windows Installer service allows user to install and uninstall programs in the computer. Error 1084 may appear if you have an outdated version of Windows Installer on your system. To fix this issue you have to install the latest version of the service. To do so follow these steps:
Delete Temp Files
Some junk files in the temp folder may also prevent you from uninstalling a program. In this case you have to clean the files in the temp folder. Follow these steps to clean it:
Fix Windows Registry
Error 1084 may also appears if Windows registry is broken or corrupt. To fix registry you have repair the corrupt entries. It can be done manually if you know how to deal with registry otherwise install a third party program to fix registry errors.
You can download and install System Utilities program that inlcudes a registry fixing tool. This tool repair corrupt entries and removes duplicate entries in just few clicks.
To download a reliable System Utilities program click on the following link:
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