Hello,
I understand how troublesome it can be when your mouse cursor has issues. Let's try a few different solutions to fix the issue you're having.
1. **Disable mouse pointer trails:** Sometimes, enabling mouse pointer trails can cause the cursor to duplicate. To disable it, go to `Control Panel > Mouse Properties > Pointer Options` and uncheck the box for 'Display pointer trails'. Click 'Apply' and 'OK' to save the settings.
2. **Check for Malware:** If you haven't already, please consider running a full scan of your system with a reliable antivirus or anti-malware software. Unexpected behavior like this could sometimes be a result of malware.
3. **Try in Safe Mode:** Boot your computer in Safe Mode and check if the problem persists. If the mouse cursor is okay in Safe Mode, then it's likely a third-party application causing the issue. You can narrow down which one by using `msconfig` to enable/disable startup applications and services to find the culprit.
4. **Check GPU scaling:** If you have graphics software installed (like NVIDIA Control Panel or AMD Radeon Settings), there might be a mouse issue related to GPU scaling settings. Kindly check these settings and turn off GPU scaling if it's currently enabled.
5. **Reinstall Mouse Drivers:** Although you mentioned your drivers are current, a good step would be to completely uninstall and then reinstall your mouse drivers. Corrupted or misbehaving drivers can cause issues like this.
6. **Try a different mouse:** If possible, try to use a different mouse and see if the problem persists. This will help verify if the issue is possibly hardware-related.
If none of these steps resolver the issue, it might be worth reaching out to Microsoft support or to the manufacturer of your computer/mouse. They may have some specific advice for you or a known solution if others have had and reported the same issue.
Hope this helps! If you need further assistance, feel free to ask.