This is like a restart, but of only the graphical part of the system. Quit your open programs first! You have been warned. Here's what happens: kill is a program to send signals (terminate or just 'signals') to Unix programs - and in OS X, all programs are Unix programs. By default, when you restart your Mac, OS X 10.7 Lion and later reopen whatever applications and documents were open when you shut down. Whether this happens depends on.
Dionosaur
Hello,
I recently returned after being away for four weeks, and I'm having a new problem with Safari. It won't reopen all the windows and tabs I've been working with. All my work is lost! What I get instead is many windows and tabs each with a title 'Untitled' and a number. This problem has never happened before, and I've searched the world over but can't find a solution. I always have research and work-in-progress going on in my browser, and that means many, many windows and tabs open. So, when I restart Safari, I use the 'Reopen All Windows From Last Session'. This has worked ok for me up until now. (Also, I regularly back up my LastSession.plist, which is in Users>myaccount>Library>Safari. The reason why I have learned to back up this file is because Safari's implementation to reopen last session is very weak... if you open Safari to view one page, then quit again, all your previous work is instantly overwritten and lost.) When I opened Safari this time, I emptied the cache. Maybe this was a mistake, but I've never had a problem doing this before. I went to previous versions of my LastSession.plist, and they load with the same problem. I have looked at the plist file and it does contain all the urls of the websites I had open, but Safari isn't paying any attention to that data. It's just giving me a bunch of blank windows and tabs. Oddly, though, three of the windows with all their tabs are opening and loading properly. I opened up Time Machine and tried restoring the old Safari cache, but it looks like this is not backed up by Time Machine because it can't be restored. Does anyone out there have any suggestions how to fix this, so I can resume with my work? This is annoying and I've already spent several hours trying to find a solution, and I'm swamped with other things to do. I don't understand why Safari and other browsers can't be designed to be more robust in this capacity. I have had problems with Firefox losing all my open pages too. I have a fast new Mac with loads of RAM. Everything is up to date. This is the first time this has happened, and I'm hoping I can get Safari working the way it was before I went away. Please help?!! Thanks... Dionosaur
Before we get our hands dirty, here’s a word of warning. If you’re wondering how to reboot a MacBook Pro, bear in mind it’s the last resort when all other methods to unfreeze your Mac had failed. Don’t try it too often as it may harm your system. No question, your Mac can handle rapid power losses and your hardware most likely won’t be hurt. What’s at risk though, is your data because each time you force reboot a Mac it affects the consistency of the file system. Now that you’ve been warned, let’s go.
Reopen Apps On Restart MacSymptoms your frozen Mac needs a force restartWindows Reopen Apps After Reboot
Can you move the cursor? If yes, try this![]()
Before you force restart a Mac, it’s always recommended to first try a software solution.
Go to the Apple menu
Choose Restart Click Restart in the menu that appears Two ways to force restart a Mac
The simplest method: hold down the Power button till your Mac shuts down. Press the button again to restart it.
If your Mac hangs for good and the pointer is inactive:
Hold down Control + Command while pressing the Power button.
This is an alternative key combination to force restart a Mac. By the way, if you are on an iMac, the Power button is found on the back of your Mac. Voila!
Is Shut Down any different from Restart?
The difference between Shut Down and Restart is quite self-explanatory. When you perform a restart, your Mac will turn on again loading its previously active apps. As for shut down, your Mac won’t start until you press the Power button again. Interestingly, all new Macs have an automatic reboot feature built-in. So even if you sit and do nothing, your frozen Mac would eventually reboot by itself, though it takes a bit of patience.
How to force shut down a frozen Mac
If you need to force shut down a MacBook Pro or MacBook Air, all you need is again to press a Power button on your Mac’s keyboard.
Press and hold Power button for 2 seconds
Choose Restart, Sleep or Shut Down in the menu that appears If you don’t want to reload the baggage of your previously opened apps, tick off “Reopen windows when logging back in”. We do recommend you to deselect this option when your Mac is slow in order to lighten the weight on your RAM.
If your Mac won’t shut down:
Press and hold Power button for about 6 seconds
Hold the button until the Mac shuts down.
Needless to say that when you force restart a Mac all your unsaved projects may be lost. It’s unfair, we know.
Why does my Mac keep freezing?
The obvious explanation is your Mac lacks memory. Or to put another way, there are too many active processes running on your Mac. First off, go to Activity Monitor to check your memory usage.
Go to Applications > Utilities > Activity Monitor
Click the Memory tab
Now, look into how heavily your Memory is loaded. Quit apps that eat up too much memory for no reason. While this may work as a temporary solution, it doesn’t stop your Mac from freezing up again. You can either force reboot your Mac each time or opt for a radical solution. Below are a few more ideas you can try.
More ways to fix a frozen Mac
Restart your Mac in the Diagnostics mode
Shut down your Mac and reboot while pressing D key. Within the menu that appears, launch the Apple Diagnostics tool. This will check your Mac’s drive for errors. From then, follow the prompts to finish the diagnostics.
Clean up your Mac
Remove old unused apps, system junk, and pervasive browser extensions. For this purpose, try running CleanMyMac application on your Mac.
It’s quite effective in removing all junk from your Mac and has a number of helpful utilities, like RAM free up or app uninstaller. Download it for free here .
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Reinstall your macOS
This is the most radical of all methods, that’s why it’s so effective.
Check out how to clean install macOS Sierra
Instructions for macOS High Sierra How to clean install macOS Mojave
How to clean install macOS Catalina
Mac Reopen Apps On Startup
Hope this guide has helped you. Before you force shut down this article, feel free to share it, using the social buttons below. Cheers!
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