Hi urbanexus,
Thanks for watching hope this helps Make sure to subscribe! DON'T CLICK THIS: https://www.youtube.com/channel/UCoUDmP4ofFnR612wl2J2rWw?subconfirmation=1. That's four keys: the command key, the option key, the letter P, and the letter R. You must press and hold these four keys before you see the gray screen during the startup process. Continue to hold down the four keys. This is a long process, during which your Mac will restart on its own. Where do the screenshots go on mac.
It sounds like if it boots to a pixelated screen you need to reboot to make it normal again. As screen settings are held it PRAM, try resetting that. Usb format for both mac and windows.
- Restart your Mac. 5 Easy Fixes for Mac Restarting Issues When on Sleep Mode. You don’t have to dwell so much thinking whether or not you should put your Mac on sleep mode. It’s an issue that has many quick fixes. If you encounter Mac restarting problems while it’s on sleep mode, here are some solutions to try: Fix #1: Unplug the USB Devices.
- I upgraded my Mac Mini 2011 from Mac OS Sierra to Mac OS High Sierra. During the upgrade process my screen went black. I was able to get it back in disconnecting and reconnecting the HDMI cable on the Mac Mini. Every time, I wake the Mini from sleep, the screen stays black. The same also happens after a reboot.
Reset the system
![Restart mac in safe mode Restart mac in safe mode](https://i.ytimg.com/vi/1mtKzQnusPI/maxresdefault.jpg)
You can reset the Mac's parameter RAM and SMC.
Reset the resolution
Start by resetting the Mac's parameter RAM. If the display does not come up, was previously set to an unsupported resolution, and still results in no video:
- Start up in Safe Mode.
- From the Apple () menu, choose System Preferences.
- Choose Displays
from the View menu to open the preferences pane. - Select any resolution and refresh rate that your display supports.
- Restart your computer.
- Shut down your Mac.
- Locate the following keys on the keyboard: Option, Command (⌘), P, and R. You will need to hold these keys down simultaneously in step 4.
- Turn on your Mac.
- Immediately press and hold the Option-Command-P-R keys. You must press this key combination before the gray screen appears.
Continue holding the keys down until your Mac restarts, and you hear the startup sound for the second time. - Release the keys.
Resetting PRAM may change some system settings and preferences. Use System Preferences to restore your settings.
Best regards,
Nubz
How to force reboot your frozen Mac?
Macs are well known like stable and error free computers, but even the best may crash. Even when your computer failed to finish your task and froze, that doesn't mean it's a big issue. Frequently such freezes are caused by crashed application or some of the services encountered an unexpected error. Frozen computer may have states, for example: none of new launched applications starts, your keyboard becomes inactive or even mouse cursor becomes immobile, often fans are working at their full performance, so you can hear them.
These symptoms may appear one by one, couple of them or all together, and the easiest solution is to force quit their tasks. The best way to proceed it to manually restart your device. Probably all computers have this option, just a way to do it might be different. It's not an exception for Apple computers. However, different models has different ways to proceed, so we are going to cover most frequent devices, like MacBooks and iMacs.
Table of Contents:
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What is forced restart?
A force reboot is basically forcing your computer to stop all running process immediately and shut it down. Your Mac will have to load everything again like it wasn't turned before, so if u manually shut down all process won't save anything before turning off. This option is recommended only when you encounter a real issue in your computer's work. To proceed forced restart, basically you need to hold your power button down.
Perform an forced reboot on your MacBook Air and Retina MacBook Pro
All modern MacBook laptops now have power button in their keyboard, so to force shut down you need follow these steps. Hold down the Power button on the keyboard until your MacBook stops all his components completely, this may take several seconds to perform. After your Mac completely stopped his activity, wait a few seconds and then click the power button again so your computer will boot in a usual way.
Manually restart your MacBooks with SuperDrives and Physical Power buttons
Some of MacBook and MacBook Pro models who were released earlier, was manufactured with eject key on a keyboard and integrated SuperDrive also had a power button separated from the keyboard. The button was locating on the upper right corner of the open Mac. To perform a forced shut down procedure is same as listed above.
Restart A Mac Computer
Force a reboot on iMac or Mac Mini
Restart Video Mac App
Apple desktop production has different exterior when compared with laptops, this affected power button location as well. The physical power button is located on the lower corner at the back of the computer, it has a familiar power logo, but it's not necessary to look for it, you can find it just by touching the back. To manually force a restart press and hold down this button until your Mac turns off completely, then wait couple seconds and then press the button again, so you let your computer boot in usual way.
Restart Mac With Keyboard
Mac constantly freezes up
Windows Restart In Mac
Macs may freeze for a variety of reasons, but it shouldn't become a usual occurrence, if it happens repeatedly it's time to start troubleshooting what causes your computer to freeze. There are cases when freezes begins after additional RAM installation, or software's updates. If you're experiencing this issue without any updates or hardware upgrades, you should bring your computer to Apple support or a technician to look up your hardware's condition. Note: Some Macs and versions of OS X had an automatically restart if Mac freezes feature, which was temporary, so if you own ones of these you will not notice, when your Mac froze, however it will suddenly reboot, seemingly at random instead.