A mouse pointer can freeze up for any number of reasons, including system glitches, hardware incompatibility and hardware failure. If your mouse is freezing regularly, steps will need to be taken to fix the problem. The easiest way to troubleshoot a frozen mouse is to reinstall the necessary drivers--these are the files which tell the computer how to recognise and utilise the mouse, available through your mouse manufacturer's website.
Reboot your computer. This likely will unfreeze the mouse for the time being.
Navigate to your mouse manufacturer's website. Go to the support page and then the downloads page. Enter in the model number of your mouse to find the appropriate drivers for your operating system.
Download the driver that appears and save it to your desktop.
Open up the Start menu, go to the Control Panel, and open the Device Manager.
Open the menu for "Mice and other pointing devices." Double-click on your mouse in the list that appears.
Click on the "Driver" tab and press the button to "Update Driver." Select the desktop as the area to search for the latest driver, then press "OK" to begin the automated installation process.
Reboot your computer. With the latest driver installed, your mouse should no longer freeze.