Xbox Error Code 0x8B050099 — What It Means & How to Fix It

What Does This Error Mean?

Error 0x8B050099 on Xbox means a game or app update could not be downloaded or applied. The download may have failed due to a network issue, insufficient storage, or a corrupted update package. Deleting the pending update and restarting the download usually resolves this.

Affected Models

Xbox One
Xbox One S
Xbox One X
Xbox Series S
Xbox Series X

Common Causes

The internet connection was interrupted while the update was downloading
The Xbox's internal storage is too full to download and apply the update
The Xbox update servers are temporarily busy or experiencing issues
A partial download from a previous failed attempt is blocking the new download
A DNS or routing problem is preventing the Xbox from reaching Microsoft's update servers

How to Fix It

Go to My Games & Apps > See All > Updates. Cancel any queued update for the affected game.

Canceling removes the partial download data that may be causing the conflict.
Check available storage: Settings > System > Storage. You need several gigabytes free for large game updates.

Delete unused games or move them to external storage to free up space before retrying the update.
Test your internet connection: Settings > General > Network Settings > Test Network Connection.

All steps should show 'Connected'. If the speed test shows under 5 Mbps, your connection may be too slow for reliable downloads.
Power cycle the Xbox and router: hold the Xbox power button for 10 seconds to fully shut down, unplug the router for 30 seconds, then restart both.

A full power cycle clears the console's network cache and re-establishes a fresh connection to Xbox servers.
After restarting, go to My Games & Apps > See All > Updates and manually trigger the update again.

If the update still fails, try at a different time of day — Microsoft's update servers can be congested during peak hours (evenings and weekends).

When to Call a Professional

Error 0x8B050099 is always a network or storage issue — no professional service is needed. If your Xbox consistently fails to download updates despite good internet and sufficient storage, the internal storage may be developing faults. Contact Xbox Support if this is a recurring problem.

Frequently Asked Questions

Do I have to update my games to play them?

For most online multiplayer games, yes — you must be on the latest version to play online. For single-player games, you can often play offline without the update by disconnecting the Xbox from the internet. To play offline, go to Settings > General > Network Settings > Go Offline.

Why does the same game keep failing to update?

If a specific game repeatedly fails to update, try uninstalling and reinstalling the game completely. This ensures no leftover corrupted data from the previous installation is interfering with the update. Your saves are backed up to the cloud automatically for Game Pass and Xbox Live titles.

Can I pause and resume an update later to avoid error 0x8B050099?

Yes. You can pause updates in My Games & Apps and resume them later. Scheduling large downloads for overnight (when your internet is less congested) reduces the chance of download failures. Xbox also has an energy-saving mode that can automatically download updates overnight.