Your Lenovo ThinkPad T400 laptop provides a touchpad beneath the keyboard that acts as a mouse to move the cursor on-screen utilizing your fingertips. Despite the fact that this built-in mouse is really a practical function as you use your laptop, it may lead to aggravation if it stops operating abruptly. You’ll need to connect an external, USB mouse to navigate your laptop as you troubleshoot the touchpad’s sudden unresponsive behavior.
Clean the Touchpad
Navigating your T400 relies on right connection among your fingertip plus the surface in the touchpad to move the cursor. If either surface is oily or otherwise dirty, the touchpad won’t respond for your touch. Wash your hands completely just before applying your T400, and clean the touchpad having a damp cloth or rubbing alcohol to eliminate all built-up dirt and oils.
Allow the Touchpad
By way of the course of use, your touchpad could happen to be disabled to stop accidental cursor movement as you kind. Verify the status of the touchpad by getting into the “Control Panel” in your program and clicking on “Mouse.” Click around the “UltraNav” tab and be sure “Enable Touchpad” is chosen. Alternately, it is possible to toggle involving enabling and disabling the touchpad by pressing the “Fn” and “F8” keys simultaneously.
The drivers connected together with your T400’s touchpad might have grow to be corrupted or broken, stopping suitable communication among the laptop and device. Verify Lenovo’s web page for updates for your drivers and set up them to repair the issue. Outdated operating technique files might also lead to poor touchpad functionality, so verify Microsoft’s web-site for operating method updates.
Verify for Malware
Mysterious, sudden challenges together with your laptop or computer could indicate the presence of malware applications someplace in your program. Viruses, spyware and adware all secretly set up themselves inside your files, causing laptop or computer sluggishness, crashes and hardware challenges. Run a deep malware scan to determine and remove any doable invaders in your program, and return the T400 to appropriate operating order.