Hi Анна Ромашова,
Issue reported: Invisible cursor on Windows 11 machine.
Troubleshooting Scope: We are required to uninstall mouse and pointer devices drivers from the device manager followed by a restart. Test the machine and if the issue remains the same then, we can install all latest drivers and firmware from the OEM website and install all Windows Updates including the optional updates from Advanced options in Settings.
We also need to perform an SFC, DISM and Check disk scan /r /b one after each restart.
Additionally, please refer the below mentioned thread and articles for better troubleshooting the same problem.
Mouse Keeps Disappearing Windows 11 - Microsoft Community
Mouse and keyboard problems in Windows - Microsoft Support
Change mouse settings - Microsoft Support
Please update with your findings!
Sincerely,
CK