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

Sometimes When you install/uninstall an application, you may receive the error prompt saying “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”. In a first look it is utterly depressing in Microsoft world !

You won’t be able to continue installing/uninstalling software unless you fix the error.

This can happen because of multiple scenarios. In this post, we will discuss couple of steps which can help you to sort out this error.

Step 1: Windows Installer Service

Verify that installer service is running or not ! If not then make sure it is running and take a system restart.

Installer service

Step 2: Fix your corrupted keys

Microsoft provides a utility which can help you to identify and fix the corrupted registry keys. Download the utility and run it on the system. Follow the steps as it runs.

Example steps -

That’s it. Most of time these steps helped me. I hope it helps you as well.

Thanks

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