Hi AdrianKomiński,
Welcome to Microsoft Community.
Thank you very much for sharing selflessly.
Your selfless sharing will help others and will foster the continuous development of the community.
Due to network conditions, the links you provide may not be accessible in all areas.
So, I'll list the specific steps in this response for other users' reference.
Steps are as following.
- Type Control Panel in the search box, find and run Control Panel.
- Find Keyboard and click it to modify Keyboard Properties. You can find Keyboard by searching for or changing View by. 1:Search
2:View by
- Find Cursor blink rate in Speed Tab. As shown below. Modify it according to your needs!
If there is anything not clear, please do not hesitate to let me know.
Best Regards,
Kyo - MSFT | Microsoft Community Support Specialist