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#21
I just manually installed the Aug 5 Realtek HD Audio Driver manually (using the 'Have Disk') method, to force it, and FMAPP.exe appeared in my process list. Upon terminating the process, the mouse lag disappears. Will keep experimenting and reporting back here.
I also have the Acer R5-572. I updated to Windows 10 this morning, and the mouse lag has been driving me nuts. I've been spending all day looking for fixes, and I think this finally did it. In the Task Manager, I force-closed fmapp.exe, then disabled the HD Audio Background Process and Realtek HD Audio Manager from starting at boot, and the trackpad and my mice are all behaving again. I actually just now created this account so that I could log in and thank you and let you know this worked for me.
Edit: Turning all the Realtek stuff off was messing with my microphone, so I re-enabled them and just renamed fmapp.exe in the C:\Program Files\Realtek\Audio\HDA\ folder to fmapp.exe.bak.
Last edited by crashsuit; 14 Aug 2015 at 19:25.