If the game is very demanding, you may get low frame rate and crash.

However, sometimes you are unable to change priority in Task Manager.

You will receive a message saying Access Denied, or the priority simply wont change.

Top 8 Ways: Fix Task Manager Not Responding Windows 7/8/10

This can either happen with all processes on your system or with a certain process on all systems.

Next, I will introduce 3 useful methods to help you fix the priority simply wont change error.

Step 1:see to it youre logged in Admin.

User Account Control Settings

Step 2:Start your program and open theTask Manager.

Step 3:CheckShow processes from all usersto ensure processes are running as Admin.

Step 4:Then right-poke the program and clickSet priority, then change the priority.

Safe Mode

Is Task Manager not responding in Windows 10/8/7?

Now get the full solutions to fix Task Manager if you cant open it.

Step 1:TypeUser Account Controlin the Search menu to open theUser Account Control prefs.

Step 2:Set the bar toNever Notifyto turn off the prompts.

Step 1:Reboot your unit.

Step 2:PressF8to boot into Safe Mode before your Windows boots.

Step 3:ChooseSafe Bootand let Windows boot up.

Step 4: have a go at switch the priority in the Task Manager.

if you catch such an error, these methods can be useful and effective for you.