Csinativeimagegen.exe -

During execution, it may briefly consume significant CPU (30‑100%) while generating native images. This is normal and should subside within minutes.

is one of Windows' many background helpers that does important work but often goes unnoticed — until it hogs your CPU. Now you know that it is a legitimate, Microsoft-signed component responsible for making .NET applications run faster. While it can temporarily strain system resources, it is not malware, and it can be safely managed or disabled via Task Scheduler without harming your computer. csinativeimagegen.exe

The software takes a minute or more to launch. During execution, it may briefly consume significant CPU