keyboard shortcuts not working in Photoshop CC

Try following the five solutions outlined on this web page:

Keyboard shortcuts stop working in Photoshop

Here is a protocol that should work for anyone experiencing the warning alerts and/or keystrokes not functioning properly.  You will want to refer to a master list of Photoshop's default keyboard shortcuts. The list is here from Adobe's website: Default keyboard shortcuts

Your next step is to open Photoshop, and under Edit in the menu, scroll down and select Keyboard Shortcuts.  A dialogue box will come up with a few tabs, each containing many options. (That master list linked above will come in really handy at this point.)

As you look through the Keyboard Shortcut dialogue boxes, you will notice that some of the combinations are either a) different than previous releases, or b) not there at all.  Go ahead and adjust them to your liking, just highlight the area you'd like to redefine, then hit OK.  Like this:

I just did a fresh install of Adobe CC the other day, and everything was a bit haywire RE: keystrokes not working and also giving the warning alert sound. This has essentially fixed the problem. I will add to this post if additional workarounds are needed.

Hope this helps.

Any other ideas out there?  My shortcuts started working for awhile (I have no idea why), and now they're not.  I have tried everything suggested in this thread and elsewhere online -- reset preferences, white window, updates, closing applications, etc., etc., etc.  This is so frustrating!!

I don't think this is a mac problem at all and I'll tell you why:
I have the same problem where the shortcuts (to change tools, most notably, like B for brush, V for selection, etc) just stop working. The only workaround I've found so far is to switch to another active program and switch back.

I am experiencing this on a Win 8.1 x64 PC and a Win7 x64 PC, both with the Photoshop CC 2014 v14.2.1!!! Come on, Adobe, your customer service is crap so at least make the technical fixes happen!

Let me just finish by saying that the problem is REALLY INFURIATING!

I know this is an old question here but for the people having problems with shortcuts (Brush Size increase with wacom tablets such as the rotation wheel) [ or ] or any other shortcuts problems, I just fixed my problem by changing back my keyboard setting to U.S. English. After that everything came back to normal without lag.

If you are on another language the shortcuts will be messed up, I have no idea why but changing it back to english for me did the trick!

Hope that helps.

I have now tried closing all browsers, unplugging all card readers, freeing up every possible USB port, closing every single other application, installing the White Window thing, unplugging headphones, deleting all 3rd party plugins, trashing preferences, shutting down the machine and powering on again, doing a system wide cleanup, trying the mouse only, then the Wacom only, then uninstalling and reinstalling the Wacom drivers, updating CC, and every other recommendation made. 

Bottom line:  sometimes they work, sometimes they don't.  Every time they work, I'm lulled into a false sense of security, only to have them fail again. 

So far, they only work about 20% of the time. 

Absolutely infuriating.  Maybe I'll cancel my Adobe monthly membership and just go back to CS6, where I never had this problem.

Updated CC and zoom out worked fine for a while then it randomly  stopped again. Tried turning off safari and the whitewall plug in as other suggested and none work on CC 2014. Really annoying!

I have been having this same issue off and on. I read on another thread that there can be issues with Safari or other web browsers. Don't remember why exactly but I shut down Safari and problem is solved. This happened a few weeks ago and has not returned until today. I tried shutting down Safari and sure enough it fixed the problem again. So maybe that will help some of you.

I have been having this problems on my new Mac Pro running Yosemite & PS6. It's completely unacceptable! We are all trying to our jobs here and are paying for/have paid for software which has serious problems. I've been working with PS for over 8 years now and never experienced anything like this. My workflow has halved which is very stressful. I still have the same amount of work to send out to clients. What is going to be done about this? If this were a car that we were renting that suddenly couldn't change gear, would we be expected to carry on paying for it with no replacement or repair??

The main shortcuts not working (or very intermittenly working) are

X- toggle between black & white masks

Zoom in & Out

Generally switching between tools

Brush sizes ([ ])

Toggling the mask on & off (\) My mask is often pixelated and does odd things.

PS6 crashes or freezes and is completely unusable.

Please can someone advise me what can be done.

I've been on photoshop since day one when there wasn't even a pen tool and have never experience the problems that I am having with CC 2014 and my new Mac Pro and wacom tablet. Adobe technical support is useless. Apple operating system Yosemite is very buggy. Wacom tablet is buggy. The problem is there is no communication between the companies. And the end user which is us gets screwed... I've been on with technical support with the three companies and each blames the other.