How to disable Windows 10 memory compression?

This is a good feature to avoid paging (writing data to pagefile.sys on the HDD) .

If you want to test your Windows 10 without memory compression, start powershell as admin

and run the command Disable-MMAgent -mc and reboot. This disables the compression. To enable it later again, run again powershell as admin and run the Enable-MMAgent -mc command.

You can check the full answer at What is the cause of a high CPU usage of 'system and compressed memory' in Windows 10?. But for a short version:

I went to:

Start->Control Panel->Administrative Tools->Task Scheduler->Task Scheduler Library->Microsoft->Windows->MemoryDiagnostic

_{(To make this option visible, you need to run the "Task Scheduler" as Administrator!)}

There are two line items. Running of the task may be dependent upon log events. I'm not sure if they just have to exist, or if they trigger upon entry into the log. In any case, I disabled the entry labelled as RunFullMemoryDiagnosticEntry. That solved my instance of the problem.

If this doesn't solve your issue, instructions earlier in the answer suggest using the Windows Performance Analyzer to help find a solution.