You can block users access to Task Manager, and here's how on Windows 10.

[Windows Central]

It's possible to disable the Task Manager app on Windows 10, and in this guide, we'll show you two ways to complete this task.
On Windows 10, Task Manager is an advanced feature that gives you access to tools to start and stop applications, monitor system performance and running apps and services, and much more.
Although it is a handy tool, sometimes, you may want to disable access to prevent users from restarting specific programs, changing processes priorities, or because you need to comply with your organization's policies.

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