After running Windows 7 RC 64-bit for approximately 2 weeks with no issues, I've started running into issues this week with it occasionally becoming very sluggish for extended periods of time. The culprit seems to be that mscorsvw.exe*32 (.Net Runtime Optimization Service) is thrashing the hard drive and chewing up large chunks of memory (up to

What is Thrashing? - Computer Hope Apr 26, 2017 10 Ways to Resolve a 100% Disk Usage on Windows 10 (2020) Jul 10, 2020 The tests - How to optimise your Windows swap file | TechRadar

Slow startup then disk thrashing for ~10min before

Windows 7 hard drive thrashing regardless of system being Oct 13, 2010

Use Task Scheduler To Tweak Automatic Disk Defragmentation

What are the passes in a disk defragmentation? - Quora