How to fix Error Code 1500 on Windows 10: There are a handful of methods you can use to successfully get rid of this error. How Do I Fix “Error 1500 – Another Installation Is in Progress”? Let’s now go ahead and look at the fixes for the error.
In this case, the problem is suspected to be caused by an ‘In progress’ key left behind by a previous installation. Normally, as the message points out, all you need to do is check if there are any ongoing processes and then wait for them to complete or terminate them.īut many Windows 10 users report that they get the error even when there are no other actions in progress. “Another installation is in progress” with the error code 1500 occurs when you try to start a program installation at a time when Windows Installer (MSI) is already running.
