Lenovo Thinkpad W550s. Started life with Windows 7 Pro, then upgraded to Window 10 Pro. The Lenovo PM device driver caused problems (primarily it throttled the CPU speed to around 28%) and I disabled it. This was good back in November 2015. Sometime in early 2016 the driver apparently received an update and it was working OK, so I left it alone.
Recently I realized that the computer would never go to sleep, neither on AC or battery. Went into Device Manager/System/Lenovo PM. Driver now showed a date in May 2016. Disable option is now disabled! Rollback is no longer possible! So I used Uninstall, but the driver returned after reboot. Then used uninstall with remove files (or whatever that option says). It still returns after reboot!
A few days ago I get another PM device update, this shows July 2016. The sleep problem is still there. I cannot uninstall this driver either, but I can rollback to May 2016 version.
Does anyone know how to really remove such a stubborn driver? Do I need to remove some of the awful Lenovo management applications (that apparently are written in Adobe Air, oh god help me!)?