For anyone who loves the Mac operating system, having to use Windows and Windows programs in an office environment is a real disaster, because you’re probably using Parallels Desktop to run your Windows VIRTUAL machine, and you’ll experience fans spinning and machines burning. At this point, if you look at the process on the terminal, you will see that prl_VM_app often consumes more than 100% of the CPU. You can also use the Activity Monitor to check.

If you look at Windows resource consumption at this point, you will find that no process is consuming.

This happens so often that I have to worry about the Macbook Pro I bought in 2011. After a bit of research, I found the following ways to reduce the frequency of the fan’s crazy spin, which I hope will help you.

Disable the Windows index service

1. In control Panel, find “Performance Information and Tools”



2. Select “Adjust index options” on the left to close all index locations.

Disable unnecessary scheduled tasks

1. Right-click Start -> Computer and choose Manage.

2, findTask planner, turn off unnecessary automatic updates and scheduled tasks such as Defrag for Windows

Shut down unnecessary services

1. Enter in the runservices.mscTo open the service window

2. Select programs that automatically start according to startup type, and select unnecessary disabling, especially Windows Media Player Network Sharing Service.

By using these methods, fans can generally be reduced. If you have a better idea, please share with me.

Of course, there are also some users who say that Fusion has never had this kind of situation, who can verify it?

Prl_vm_app @ 99.9% CPU on Mac OS X 10.7