@Markus26941765gvbz It may help if we could see your Photoshop System Info. Launch Photoshop, and select Help >System Info...and copy/paste the text in a reply.
Try restoring your preferences using this manual method: https://helpx.adobe.com/photoshop/using/preferences.html#Manually
That might allow you to run with the GPU enabled.
If that doesn't solve it, you can quit Photoshop and put the Settings folder back
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