NVIDIA’s Game Ready driver version 531.18 WHQL, released last week, contains a bug that causes high CPU usage. NVIDIA has identified the issue. It doesn’t happen with all graphics cards.
A bug in the Game Ready driver 531.18 WHQL is known to cause the NVIDIA Container process to consume more than 10% of available CPU resources after starting or ending a game. Increased resource usage can be detected in the Windows Task Manager, which shows the current resource usage of the computer.
For those who have encountered this problem, the best option right now is to roll back to the previous version of the 528.49 WHQL driver. If you don’t want to reinstall the driver, you can force-quit the NVIDIA Container process or restart your computer.
NVIDIA is aware of the above issue and has added it to the list of bugs to be fixed in future driver updates.
It is very likely that given the severity of the bug, a fix for it will be released soon.