Error 0x80000021 occurs when you try to launch Halo 5: Forge
You get the following error code when you try to launch Halo 5: Forge:
This means that your PC's system RAM is below the minimum specifications to run Halo 5: Forge, and you may experience poor performance or stability when running this game.
Make sure your PC has at least 8GB RAM or greater.
To ensure your PC meets the minimum specifications, follow these steps:
- Go to Start, select Settings, and then select System.
- Select About.
- Scroll down the list of your PC's specifications to Installed RAM, and identify your PC's RAM count.
Compare this with Minimum Specifications to run Halo 5: Forge, and make sure you match or are above this requirement.
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