1. First, we open my computer and find the system partition. It's usually drive C, so we set a restriction that we can't access drive C.

2. Open and start running. Enter the gepdit.msc command to open the Group Policy Editor.

3. Enter the group policy settings, then find the user configuration, manage the template windows Explorer, and prevent my computer from accessing the drive on the right.

4. Set group policy rules, set group policy rules and enable them. At the same time, set the option to restrict only disk drive C.

5. Confirm the rule/refresh rule, keep it after setting, and confirm the configuration success again. Then pass gpupdate or cancel the rules that take effect immediately.

6. Visit disk C in my computer again, and you will find that the operation has been cancelled due to the limitation of this computer.