6 Replies Latest reply: Jan 8, 2016 6:53 AM by johnjarre
maclover01 Level 1 Level 1

I have notice this in photoshop,most time i hold alt key.it make the keyboard stop working,until i do restart,Now it happening in mac..when i try to view my library by holding the alt key in finder...my keyboard stop working


anyway to fix this?

MacBook Pro, Mac OS X (10.7.3)
Solved by pennbank on Mar 18, 2012 6:58 AM Solved

Go to System Preferences, Keyboard, Modifier Keys, Restore defaults

Then Keyboard Short cuts, Restore defaults


Then if not working





Reset the PRAM



Reset the SMC


Reply by fane_j on Mar 18, 2012 11:49 AM Helpful

maclover01 wrote:


i have notice it stop working when i press alt key 5times..

There is no "alt" key on the Mac. You are talking about the Option (symbol ⌥) key (which also bears the label "Alt" for use with emulators or non-Mac apps).

how can i disable this fuction?

System Preferences > Universal Access > Mouse & Trackpad (or Mouse) > Mouse Keys > Off.


When mouse keys is engaged, some keys are used to control the cursor and other mouse features; other keys are disabled. This feature was designed for users with mechanical disabilities; however, once you understand it, you may discover that it can be very useful with Photoshop, because it allows for fine and precise cursor movements. See




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