Welcome Ben G,
Thanks for reaching out to Microsoft Q&A Forum. I understand that your mouse pointer randomly becomes invisible while remaining functional, and that this started after you enabled Secure Boot.
Could you confirm whether the cursor also disappears in Safe Mode? Also, are you running a standard Windows 11 release or a Windows Insider Preview build?
Please make sure you already tried the Q&A Assist steps. In addition, please try the following.
Step 1: Test the cursor in Safe Mode.
- Open Settings and select System, Recovery.
- Under Advanced startup, select Restart now.
- After Windows enters the recovery environment, select Troubleshoot, Advanced options, Startup Settings, Restart.
- Select Enable Safe Mode.
- Check whether the pointer still disappears when hovering over text, buttons, and other items.
Step 2: If the cursor works normally in Safe Mode, perform a clean boot.
- Search for
msconfigand open System Configuration. - On the Services tab, select Hide all Microsoft services, then select Disable all.
- On the Startup tab, open Task Manager and disable the enabled startup items.
- Restart the computer and test the cursor again.
Step 3: Temporarily change the pointer style for testing.
- Open Settings and select Accessibility, Mouse pointer and touch.
- Change the pointer to a different color and increase its size.
- Check whether it remains visible when hovering over different interface elements.
Looking forward to your update.