![]() Big thanks to for his work in the other question and for leading me towards WPRUI and WPA. While this feature stands to bring an overall performance gain for Windows 10 machines, it should be given extra consideration when used in a VMware Horizon View environment. This changes the I/O and RAM utilization profile of Windows when used as a virtual machine. I thought I'd type this up since I spent so much time researching the problem. Windows 10 now includes the memory compression feature. Since it's a laptop and I'm not likely to use the wired NIC anytime, I just disabled it in Device Manager, and the problem stopped immediately. High CPU usage or memory leak in Windows 10 could be caused by other Windows processes, including DWM.exe, System Interrupts, Service Host, Runtime Broker, etc. Updating to the latest drivers from Dell didn't help. Looking up that driver, it was for the onboard NIC (Realtek). I drilled down the CPU spikes through ntoskrnl.exe -> ndis.sys -> rt640圆4.sys. ![]() ![]() Following what magicandre1981 did in the other thread, I used WPRUI to capture the activity and opened it in WPA. Observing Task Manager during these lockups, 'System and compressed memory' would be the only thing spiking and would reach about 25% before returning to a negligible level. ![]() I tried to follow What is the cause of a high CPU usage of 'system and compressed memory' in Windows 10? because the symptoms were similar, but the root cause was different. After a random amount of time after reboot (20 minutes to 2 hours), my laptop would have considerable lag, locking up for 2-3 seconds every 6-10 seconds. ![]()
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