MacBook Pro is really slow after yosemite update.

This makes no sense to me. Please be precise if you are trying to help. We come to support because many of us are novices.

1Al - Thank you!!! Beam worked like a charm!

Hello,

I have iMac 27" Mid 2010, recently updated to Yosemite and chaos happened. Everything is very very slow, especially Photoshop which I need to use more often...I tried with Beamoff - placing it in Application folder and added in login items, maybe helped a little bit, but not so much...

Can you tell me where I can get Dock.app from Mavericks to try with this other trick also? And to write maybe some more detailed procedure how to make it because I am not very known with Terminal. :-)

Thank you in advance!

Hello,

I got Dock.app file from other OS X and I tried in Terminal by using commands killall -KILL Dock and just killall Dock, but my Dock is restarting immediately and comming back, I don't have time at all to change Dock.app file.

Does somebody know some other solution how to quit Dock for some longer time so I can change this file?

Thank you!

Also very slow for me. I've followed all of the fixes suggested and nothing works. I'm periodically checking for updates in hopes of finding a fix. IShort of that, I'm using my PC instead. This is the worst upgrade ever. If you haven't upgraded I have one piece of advice: DON'T DO IT!

hi Blueg

Thanks. this worked for me. Is there anything I need to watch by not having this box checked?

How do you do this?

I have been fan of Apple for sometime now. However, my 2011 model MacBook was giving me the proverbials - slow, apps hanging. It was like my worst PC experience.

After a visit to the friendly tech guy at the Apple Store it was decided I needed to downgrade from Yosemite to Mavericks. As much as I wanted the latest OS, my MacBook wasn't up for the task (even though it should be).

While it took a few hours over a weekend weekend and a few visits back and forth, it cost me nothing and the service from the Apple store was free, courteous and professional. My faltering faith in Apple is restored - and so is my MacBook.

Sure - I don't have the Yosemite and will miss it - but I will trade that to having my MBP back to the performance I was used too.

This "never" made much sense to me. Seems some updates simple make the hardware unbearable. I've learn that with iOS3 for iPhone 1, and then subsequently with the other iPhones and OSXs. Unfortunately for me I need the latest for professional reasons. I was running 10.8.5 until not long ago on one of my machines, and was heaven. I'll try to stay away from "Mr" Capitan of sure slowness for as long as I can.

Anyway, try disabling some services, like for instance Spotlight (mdworker can be resource consuming at times), Notification and others.

Worked like magic