Error: The Windows Installer Service could not be accessed

Original Title: How can I fix this error msg.?

"The Windows Installer Service could not be accessed.  This can occur if the Windows Installer is not correctly installed.  Contact your support personned for assistance."





1.       When exactly are you getting this error message?

2.       Which program/application are you trying to install/un-install?

3.       Have you made any changes to the computer prior to this issue?

You may perform the methods mentioned in the following article and check with the issue.

Error “The Windows Installer Service Could Not Be Accessed” when installing or updating programs on Windows 7 or Windows Vista

Note: This section, method, or task contains steps that tell you how to modify the registry. However, serious problems might occur if you modify the registry incorrectly. Therefore, make sure that you follow these steps carefully. For added protection, back up the registry before you modify it. Then, you can restore the registry if a problem occurs. For more information about how to back up and restore the registry,


Yaqub Khan

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Question Info

Last updated March 25, 2018 Views 44 Applies to: