Hello zian147 ,

To change the location where the Microsoft Store is supposed to install new apps, you need to do the following:

1. Press "Windows key + I" at the same time to open Windows settings.
2. First press on "System" in the menu on the left and then on "Storage".

3. Click on "Advance storage settings" under "Storage management" to open the drop-down menu.

4. After the drop-down menu has opened, click on "Where new content is saved".

5. Under "New apps will save to:" you need to click on "Local Disk (C:)" to open a drop-down list where you can select the location where the Microsoft Store should install new apps and games.

6. Now you only need to select the hard drive on which the Microsoft Store should install new apps or games.

I hope I could help you with your problem ^^

With kind regards
Liberato Giuseppe Fusco