When investigating this issue, you should start by ensuring that you’re not dealing with a server issue. If that’s not the case, perform a power cycling to eliminate any problems caused by temporary files. However, if your console is registered to the Xbox Preview program, you will need to sign in to your Xbox Live account from a Windows 10 console (via Xbox Insider Hub UWP app) and remove your console from the preview program. In case the problem occurs due to a firmware issue, you have two ways to resolve the problem – You can either install the pending mandatory update manually (you’ll need a flash drive) or you can use the Startup Troubleshooter to reset your console to factory (you’ll end up losing any data it’s currently holding).
Method 1: Investigating the server status
Before you try anything else, it’s important to ensure that the problem is not being facilitated by something that cannot be fixed by the end-user. The update may be failing due to a server issue that is preventing your console from retrieving the files necessary for the firmware update. To verify if this scenario is true, you will need to check the current status of the Xbox Live services. To do this, visit this link (here) from a mobile or desktop device and see if any service is currently experiencing problems (especially the Xbox Live Core service) Note: If the status page reveals an issue with some essential Xbox One services, the issue is beyond your control. In this case, all you can do is wait for Microsoft engineers to fix the problem automatically. If your investigation didn’t reveal any server issues, the problem is likely occurring locally. In this case, one of the fixes below will end up fixing the issue for you.
Method 2: Performing a Power Cycling Procedure
Since you concluded that the problem is only occurring locally, you should start by ensuring that your Xbox One console is not being caused by a temporary file that is interfering with the installation of the new firmware. When it comes to doing this, the easiest procedure is to perform a power cycling procedure. This is more than a regular console restart since it will end up draining the power capacitors and fix most firmware issues related to corrupted temp files. To do this, follow the instructions below to do a power cycle on your Xbox One console to fix the 0x8b05000f: In case you still see the same error, move down to the next potential fix below.
Method 3: Removing Xbox Console from Preview program
As it turns out, you can expect to encounter this particular 0x8b05000f error in case your account is currently signed up for the Xbox Preview Program. The vast majority of users that documented this error have confirmed their enrollment in the Xbox Preview program. If this scenario is applicable and you are indeed enrolled in the Preview program, you will not be able to unlist conventionally since you are no longer able to access your console normally. However, you can remove your Xbox from the Preview program from a Windows 10 PC by installing the UWP (Universal Windows Platform) application of Xbox Insider Hub. To do this, follow the instructions below: In case you’ve followed these instructions to no avail or you weren’t part of the Preview circle, move down to the next potential fix below.
Method 4: Updating the Console’s Firmware manually
If none of the methods below have allowed you to get rid of the 0x8B05000F error while trying to install a mandatory Xbox One update, the only fix left that won’t interfere with your console files is to attempt to install the console’s firmware manually. This will require you to use a flash drive of at least 10 GB that’s formatted using NTFS. This is the only prerequisite, the rest you can obtain from the Microsoft’s support website. You’ll need to visit the Xbox Support website and download the latest OS firmware version. If you are prepared to do this, follow the instructions below to update your console’s firmware manually and circumvent the 0x8B05000F error: In case you don’t have a USB flash drive to complete the operation above, move down to the final fix below.
Method 5: Resetting the Console via Startup Troubleshooter
In case none of the methods below have allowed you to fix the issue, one last resort is to reset your console completely via the Windows Startup troubleshooter. But before you commit to this, keep in mind that this operation will end up deleting your game data, temp files, video content, and anything else you currently have stored on your console. Note: Save data will not be touched by this operation as long as it’s backed up via Xbox Live. If you are prepared to go this route and you understand the consequences, start following the instructions below to get started with an offline factory reset on your Xbox One console to fix the 0x8B05000F error:
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