How to remove the un-installed app from the app store in Win10 system

We know that the Win10 system also has an application store controlled by Microsoft, but there is a problem: in the case of purchasing an application but not installing it, these applications will always appear in the un-installed list. This problem has not been solved by Microsoft, but we can adopt a more compromise approach.
Workaround
For the Microsoft account login system, there will be no list of uninstalled apps, because you have changed an account. But as long as you log in to the system using your original account, the list exists. Fortunately, the installation files that appear as unmounted applications are not stored on your computer.
The above is a trick to let the Win10 system app store have purchased un-installed apps disappear, mainly to meet the needs of users with obsessive-compulsive disorder. Of course, I hope that Microsoft can solve this problem as soon as possible.