Error code: 0x87E10BD0 when trying to use PC Windows Store

Hi there Kingtut9009,

Thanks for reaching out here in Xbox Forums. I understand there is an issue with the Xbox Beta App on PC. I recommend checking out the following article for more information:
Windows 10 Xbox (Beta) App FAQ.

If the issue persists:

• Please use the built-in feedback tool within the Xbox app to help us better understand the issue you are facing. Just click on your profile photo and select “Feedback” from the dropdown menu to open Feedback Hub. Feedback Hub enables you
  to provide feedback about Windows and apps by sharing your suggestions or problems.
  

Hope this helps.

Mine error looks different to that and doesn't happen when downloading.

Sea of Thieves is currently not available in your account. Make sure you are signed in to the Microsoft Store and try again. Here's the error code, in case you need it: 0x87E10BD0

Kindly see this thread https://answers.microsoft.com/en-us/windows/for...

Please see the reply from Pedro on this thread https://answers.microsoft.com/en-us/windows/for...

Hi Mr H, my name is Adam.

I’m sorry to hear that you’re having trouble with the Windows Store. Kindly check this link to troubleshoot the issue:

In this article https://answers.microsoft.com/thread/ce3d5404-7533-4867-a0f6-03ad1016bc24 , Pedro V Flores shows the solution to the problem can be solved by following these steps:

"Method 1: Recreate the AUInstallAgent folder.

a. Press Windows key + R to open the Run Dialog.

b. Type %windir% and press Enter. You should now be in the Windows folder.

c. Look for a folder called AUInstallAgent. If it is missing in the Windows folder, then right click on an empty space and click on new folder.

d. Rename the folder as AUInstallAgent.

e. Restart the Computer and check if you are able to install apps.

If the AUInstallAgent folder is already available in the above-mentioned location, then continue with these steps.

Method 2: Reset Windows Store Cache.

Follow these steps to do so.

a. On the desktop, press Windows key + R to open the Run Dialog.

b. Type wsreset.exe and press Enter.

Method 3: Try to install the apps in Clean Boot.

To help troubleshoot error messages and other issues, you can start Windows by using a minimal set of drivers and startup programs. This kind of startup is known as a "clean boot." A clean boot helps eliminate software conflicts. Here is the link for your reference to perform clean boot.

http://support.microsoft.com/kb/929135

Note: Please go through the section: How to reset the computer to start as usual after troubleshooting with clean boot of the KB article to boot the computer in normal startup after fixing the issue.

Check if you are able to install or update the apps in Windows Store."

I hope this helps.
Adam.