
There are two accesses that you can use to manually start Windows Installer.

If none of the 3 quick fixes work, you may try 4-9 fixes one by one. Note that 1-3 are quick fixes that you can follow to make Windows Installer Service work normally again quickly. Change Remove Procedure Call Services Settings Install the Latest Version of Windows Installer Uninstall Older Version of Software/Program (that) You Want to Install 9 Fixes for Windows Installer Service Could Not Be Accessed ErrorĬonsidering the causes, we collected 9 practical fixes here to help you get rid of Windows installer service error immediately: Try the provided methods in the next part, you'll make Windows Installer work properly again in Windows 10/8/7. Windows Installer is outdated or has a compatible issue.ĭon't worry if you are having this issue on your computer.Windows Installer files are damaged or missing.Windows Installer is not correctly installed.Here are the main causes of this error and you figure out a better solution toward this issue: So how to fix "Windows Installer Service could be not accessed" or resolve Windows installer is not working issue? Windows Installer is a Microsoft Windows component that is used for software installation, maintenance, and removal. Check out how to make Windows installer work again so as to install new software on your PC. The provided methods can be applied to help you effectively fix the same issues on Windows 10/8/7, etc.

We advise you to remove or uninstall the old version from your PC in advance. Uninstall Older Version of Software/Program Type cmd in Windows Search box and right-click on Command Prompt, select "Run as administrator".
