Type the following command from an admin command prompt:
reg add HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\services\SynTP\Parameters\Debug /v DumpKernel /d 00000000 /t REG_DWORD /f
I’ve been having this problem with Visual Studio. Alt-Shift-L is a common shortcut for finding the location of a file in your solution. However, on a Lenovo laptop, pressing that key combo also stores debug log info for the touchpad driver. Pretty annoying, totally useless, and no UI element to turn it off.
Found this helpful article:
A note: Don’t call Lenovo support. My gosh, they transferred me 3 times, each time to the wrong department. Thank heavens for the Internet.
From their forums: https://forums.lenovo.com/t5/ThinkPad-X-Series-Laptops/How-to-disable-touchpad-diagnostics-hotkey-alt-shift-l/td-p/2176730
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