Windows 10, quadcore processor, 16GB memory, Ableton Live, US16x08 I've searched for this issue but it appears the previous threads are all for Windows 8 or older systems so none of the solutions apply in Windows 10. I took my laptop and interface to the rehearsal space of a new band to track some songs and the first day it worked flawlessly with only the tiniest flanging effect from latency, totally usable, no clicks, very stable. Turned everything off, took the laptop home with me, brought it in the next day, plugged in and there's a slapback delay from latency so strong it made it impossible to track mic'ed inputs and monitor headphone only (vocals, guitar) tracks simultaneously. Nothing I did fixed it: Restarting the computer, then the interface, then opening the Tascam settings panel so the "engine" was started, then opening Ableton Live; Shutting the computer down, starting the interface, then the computer, then the settings panel and Live; Etc. Every time I went into both the settings panel and audio options under Live and set the buffer in both places as low as it will go and it made no difference whatsoever. None of the advised advanced audio property tabs exist in the settings for Windows 10 so none of the previous threaded solutions apply. Anyone use Windows 10 and has solved this problem? After a while we just tracked some stuff we could do without headphones on (not much) so this thing pretty much stole an entire session from us. I need a method to ensure the same performance every time I use this thing or it has to go on eBay.