Trackpad Freezing

I suppose you already did the SMC reset

Reset the System Management Controller (SMC) on your Mac - Apple Support

and perhaps the NVRAM reset:

How to reset NVRAM on your Mac - Apple Support

If that does not work why not go to Apple and have them look at it, you have guarantee.

Hi there,

I've had the exact same problem since I bought my Macbook Pro Retina early 2015. I'm new to apple and this is my first laptop so I didnt think to check here. It seems this is a common problem!? As you describe - my laptop carries on running in whatever programs I have open but I lose all function of the trackpad. I can toggle through screens but that's it. I am forced to turn off the laptop using the power button. It is an intermittent problem, usually happening after long usage.

It is currently in for repair, as the screen was damaged, so I have notified the insurer to check this out also.

Perhaps I should also inform Apple?

My trackpad randomly stops working and a hard restart is the only way to get it working again. This has been happening for a couple of weeks. It is now locking up every couple of hours. Restarting is the only way I can reset everything. Watching this thread for a software solution.

MacBook Pro 13-inch Late 2016, 3.3 GHZ Intel Core i7, 16 GB RAM

I too had this problem. I bought a new 27" iMac with Trackpad in June, 2017. It froze with the trackpad, but not the mouse. Finally I discovered that I was making a gesture (I think a 2 finger swipe) that caused the freeze.

The Solution for me is to swipe with 4 fingers.

Try it.

Third party unknown apps , antivirus , cleaners create issues , in any case they are in the machine should be uninstalled you can visit apple authorised service centre , they will check the machine and will sort out the problem ( could be a hardware issue ) .

See this article If your Apple wireless mouse, keyboard, or trackpad isn't working as expected - Apple Support

Also run safe mode Use safe mode to isolate issues with your Mac - Apple Support

If I understand correctly, the computer lags when typing in any application. It looks like you have already done some troubleshooting. I would recommend that you read this article, it may be able to help the issue.

OS X El Capitan: If you think you have incompatible login items

There are two main troubleshooting steps I suggest completing to begin troubleshooting your unresponsive touchpad. These steps are resetting the NVRAM and the SMC on your Mac and instructions for each can be found in the articles below.

How to Reset NVRAM on your Mac - Apple Support

Resetting the System Management Controller (SMC) on your Mac - Apple Support

have you tried cleaning it?

https://support.apple.com/en-us/ht204172

I have the same problem as you and it is probably related to 10.11.4. Others seem to have the same problem. See this thread.

Since a week (10.11.4 release) it happened 3 times. Always Safari/Youtube/videoplayback related.

The whole system freezes and there is no Panic Report or Diagnostic Report generated, so it will be hard to get the necessary information to Apple, but I suspect Apple employees will encounter this problem frequently, so there is hope.