Hello sEvi,

Please, follow the steps in this article, including the advanced:
battle.net/support/article/6300064

If the issue persists, please create a DxDiag file and paste the content on the thread:
battle.net/support/article/200581

Please use the Code Blocks function when including the contents of the file:

- Press the button pre on top of the space where you normally write your message.
- Paste the content of your file between the square brackets ][

Example:
[ code]<Contents of the file>[/code ]

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