# Fixed the fan running high, kernel task taking up 500% cpu (high cpu)
**Step 1: Disable SIP**
Enter recovery mode
- Shutdown your macbook
- Press keys: `Command + R`
- Press `power button`
- Release keys `Command + R` when see Apple logo appear
- Open Terminal app on recovery screen, then run below command:
```bash
csrutil disable
```
- Shutdown your macbook
**Step 2: Disable kernal plugin `IOPlatformPluginFamily`**
Enter single mode
Hold down `Command - S` immediately after pressing the `power button` when turning the computer back on. Keep holding until a bunch of white text on black background appears.
- When the white text finishes scrolling enter:
```bash
fsck -y
mount -uw /
```
- Backup `IOPlatformPluginFamily.kext`
```bash
rsync -av /System/Library/Extensions/IOPlatformPluginFamily.kext /Users/Shared/
```
- Delete `IOPlatformPluginFamily.kext`
```bash
rm -rf /System/Library/Extensions/IOPlatformPluginFamily.kext
```
- Restart your macbbook
```bash
shutdown -r now
```
*Waiting your macbook restart complete.*
> Your macbook run fast again.
Done.
:)