1. Check the basics:

Wired mice: Ensure the cable is secure and undamaged. Try a different USB port.

Wireless mice: Replace batteries or charge. Check the receiver/dongle connection. If Bluetooth, ensure it's paired and enabled.

2. Restart and refresh:

Restart your computer: This reloads drivers and refreshes connections.

Restart the mouse: Wireless mice may have a dedicated button. For wired, unplug and replug.

3. Driver dance:

Update drivers: Outdated drivers can cause glitches. Open Device Manager, find your mouse under "Mice and other pointing devices," right-click and choose "Update driver."

Reinstall drivers: Uninstall the driver from Device Manager, restart your computer, and Windows will automatically reinstall it.

4. Cleanliness is next to godliness:

Clean the mouse: Dust and debris can clog sensors. For wired mice, gently wipe the bottom with a damp cloth. Wireless mice might have removable sensors for easier cleaning.

Clean the surface: Uneven or dirty surfaces can interfere with tracking. Try a different mousepad or clean your desk.

5. If all else fails:

Test on another computer: This helps diagnose hardware issues. If it works elsewhere, the problem lies with your original system.

Seek professional help: If nothing works, a technician can diagnose and fix hardware issues.