First, open the Roblox app on your computer and then press the three-dot menu button from the left-side pane. Now, click on the Settings option from the available menu options. After that, tap on ...

Now Roblox should have no problem installing on your PC! In the event it doesn’t, double-check that you don’t already have Roblox installed and, if so, remove it for a fresh installation.

Open the Microsoft Store app Settings. Select Updates. Find Roblox and then apply any updates, if available. When the app is finished updating, restart the computer and see if the problem is gone.