1. Which of the 2 shown keyboard drivers are you all saying to uninstall?
2. I am afraid if I uninstall them I will be stuck with password/pin entry when I reboot, the KB reinstall not yet having been done at that point.
Yeah, touchpad USED to have the Synaptics driver with the enhanced options set but at some point it vanished. Touchpad now acts really wonky, delays recognizing left button click, stuck in "select mode" etc.
There is no Synaptics driver in Device Manager or Firmware.
Attempt to install any Synaptics driver gives "device not found."
Tried 1. deleting the HID-compliant mouse driver and restarting, and 2. turning touchpaf on & off via fn+F11. Still same issues.
Having spent the entire day yesterday pulling my hair out trying to fix this I thought it was best to comment. I took these comments on board and although my Device Manager was slightly different to some, I did a Driver Booster update (never had issues before but not sure I'll do it again) and following that my mouse (and any related drive) completely disappeared. Driver Booster said it was creating a back up but when I went to load it it seems I should have gone into my drive settings and allocate space for system restore points before that so there was nothing I could do. I tried everything: multiple resets of the system, Windows updates, even reinstalled Windows 10 from their website but nothing worked.
I had a duplicate Lenovo Keyboard Device - but not 2 HID Keyboard Devices. I kept uninstalling the duplicate which had the exclamation mark on it, but when I went to scan for changes it would just come back again. I was scared to do more in case I lost my keyboard too. Before I went to bed I installed every Windows update (again) and downloaded everything from here: https://pcsupport.lenovo.com/gb/en/products/laptops-and-netbooks/legion-series/legion-y540-15irh-pg0/downloads/driver-list/
Finally this morning I plucked up the courage to both uninstall - and this time, most importantly, delete the software for the duplicate. It's a box you have to tick after you hit when it asks if you definitely want to uninstall. Immediately after doing that I scanned for new changes again and suddenly HID-compliant mouse was back. Now that's all I have, no touchpad related firmware, but at least it's working (for now). I then did the Lenovo Diagnostic test which passed fine.
This has been the most ridiculous and arduous troubleshooting I've ever had to do - and just 24 hours after spending a massive sum of money on this laptop. I know mine came about by updating on Driver Booster but others out there didn't. It's clearly an issue that affects a lot of users and I want to state it just isn't good enough that Lenovo haven't done anything to rectify this.
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