Hello @sgrygowski and welcome to the Proxmox Community Forums.
I would like to point out three things right at the start:
We only provide support in German or English. Therefore, please do not post screenshots in Polish in future.
This is a forum for Proxmox virtualization, not for troubleshooting Windows issues.
The more information you provide about your problem, the better we can help you. Based on your post, I can only gather that you are experiencing a Windows-specific issue with the updates, which, based on my current knowledge of your post, has nothing to do with Proxmox VE.
Thank you for your understanding.
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Error code 0x8000ffff generally stands for “E_UNEXPECTED” or unexpected error. This error typically occurs during Windows updates when system files are damaged or certain services are not running correctly. Maybe this would help: