Parallels For Mac White Screen

Whether you’re a fresh adopter of virtual machines or a longtime lover of virtualization, Parallels Desktop for Mac has optimized support for your external monitors and Full Screen mode! You can view your Parallels Desktop virtual machine on your native display or an external monitor so it looks just like it would if you were using a Windows PC. Not only is it functional but look how easy it is in the below steps:

You can switch to Full Screen mode a couple of ways:

  • Keyboard shortcut: Command + Control + F
  • From Window mode, choose: View > Enter Full Screen, or click the Full Screen icon in the top right corner of the VM window –>
  • From Coherence mode, click the Parallels icon in the menu bar, then choose Exit Coherence. Then click the View menu and select Enter Full Screen.
  • Additional tips for Full Screen mode can be found in this Parallels Knowledge Base article:
  1. Mac owners often find that the smaller, compact version of the Apple keyboard is counter-productive and opt to use generic keyboards that have a dedicated Number pad, and Home, End, etc., keys. Apple does make larger keyboards but this is a cheaper option if you don’t feel like spending too much money on hardware.
  2. Seamless Use Windows side-by-side with macOS (no restarting required) on your MacBook ®, MacBook Pro, iMac ®, iMac Pro, Mac mini ® or Mac Pro ®.Share files and folders, copy and paste images and text & drag and drop files between Mac and Windows applications. Easy Set-Up Parallels Desktop automatically detects what you need to get started so you are up and going within minutes!
  3. When Parallels starts (from Mac to Windows 10), the size of the MS window is about 1/10th of the size of my monitor–though the rest of the screen is black (i.e. I can barely read what’s on the screen–it’s as if it’s in micro. Changing the resolution on changes things on this very small screen.

The transition to Mac with Apple M1 chip should be smooth for most Mac applications, thanks to Rosetta technology. Fortunately, our Parallels Access™, Parallels ® Toolbox, and Parallels ® Client software worked smoothly even before Parallels rebuilt them as universal binaries. However, virtual machines are. Can’t sign into my account on the Xbox app. It just flashes a white screen then closes. I’m running it on parallels on my MacBook Pro m1. I’ve tried closing it and shutting down and retrying but it doesn’t work.

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Personally, Full Screen mode is one of my favorite features of Parallels Desktop for Mac because it allows me to utilize my Windows 10 VM on my external Thunderbolt Display here at work. I’m not constantly swiping between Desktops or having or prioritize applications when working. This additionally makes it easy to drag and drop files, copy and paste, and be uber productive (as seen below).

Kayla is running Windows 7 and Windows 10 in macOS Sierra

Here at Parallels, we’re updating our software to ensure optimized usability for our features. Some of our macOS Sierra users have mentioned issues using multiple monitors with early releases of Parallels Desktop. These users sent us detailed reports on their configurations, and with this information, our (awesome) engineering team made some changes and documented many details in the Knowledge Base article. Have you experienced issues with multiple monitors? If so, please make sure that you have the latest release of Parallels Desktop, and that you follow the steps below:


  1. Go to (Apple Logo) > System Preferences> Mission Control.
  2. Enable the Displays have separate Spaces:
  3. Log out from your macOS user account and log back in.
  4. Enter Full Screen view mode with your VM. To extend the VM to the external display, go to the VM’s View menu > Use All Displays in Full Screen.
  5. Additional tips for resolving your Full Screen mode issues can be found in this Parallels Knowledge Base article:

Additionally, there is a new feature with Virtual Machine spaces in Full Screen. This feature addresses past concerns of Parallels Desktop users whom were used to our non-native full screen, with two or more displays showing multiple virtual machine spaces at the same time. This new setting being enables will activate a Full Screen virtual machine on any display automatically. The default state will be OFF for existing virtual machines and ON for new virtual machines that are created.

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Your external monitor does not need to be an Apple-branded Thunderbolt display. Our Full Screen mode supports native and non-native displays. Subjectively, I’m excited to preorder OWC’s Thunderbolt 3 Dock to add two ultra HD 4K displays, or a combination of 4K, HD, and other displays with the mini DisplayPort port and additional Thunderbolt 3 port. Windows on Mac with a 4K display? Cemu emulator mac download. Yes, please!


Have additional questions? Feel free to reach out to our team! Tweet us @ParallelsCares or visit

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Interested in saving time and money by running Windows on Mac without restarting your Mac? Free 14 day trial: Try Parallels Desktop Now

If a plain white screen appears when your Mac starts, then some of its hardware or software may have failed. Follow the steps below to solve the problem.

1. Check your Mac’s hardware systematically.

To find a malfunctioning device attached to your Mac, start by disconnecting everything from it, including peripherals with a Bluetooth or other wireless connection. After you have done that, restart the Mac and see if the white screen reappears. If your Mac starts normally, then you can try reconnecting all of the devices one at a time until you find the one that caused of the problem. Replace that broken device.

If the instructions above did not solve the problem, proceed to the next step.

2. Start your Mac in Safe Mode and clean it up.

To start your Mac in Safe Mode, follow these instructions:

  • Press the power button, and then press and hold the shift key when you hear the start-up chime.
  • Release the shift key when you see the Apple logo and progress bar.
  • Once the Mac has gone into Safe Mode, go to your Applications folder to uninstall the apps that you no longer use, then empty the trash.
  • Restart the Mac.

If the Mac can start up successfully, use Cleaner One Pro to remove junk files (like app logs and caches), unneeded big files, and duplicates. The App Manager feature can completely uninstall any app with no leftover files.

If the instructions above did not solve the problem, proceed to the next step.

3. Reset the PRAM or NVRAM.

Parameter Random-Access Memory (PRAM) and Non-volatile Random-Access Memory (NVRAM) store configuration information about your Mac. To reset the PRAM/NVRAM, follow these instructions:

  • Restart the Mac, then press and hold down the Command + Option + P + R keys when you hear the start-up chime.
  • Continue to hold down the keys mentioned in the previous step until you hear the second start-up chime, then release the keys.
  • Wait for the Mac to finish starting up.

If your Mac has multiple drives, you might need to select a start-up disk after resetting your Mac. If your Mac starts normally, then you can skip the instructions below. However, if you must select a start-up disk:

  • Restart your Mac, then press and hold down the Option
  • In the Startup Manager, use the arrow keys to select the main drive (usually called Macintosh HD), and then press the Return
  • Wait for the Mac to finish starting up.

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After your Mac successfully starts, go to System Preferences and adjust any settings that changed.

If the instructions above did not solve the problem, proceed to the next step.

4. Make repairs with the Disk Utility.

A faulty hard drive can cause a white screen to appear. Use the Disk Utility to make repairs by following these instructions:

Parallels for mac white screen windows 10
  • Restart your Mac, then press and hold down the Command R keys when you hear the start-up chime.
  • Release the keys when you see the Apple logo.
  • When the OS X Utilities menu appears, click Disk Utility and find the drive that you want to repair.
  • Click the First Aid

The Disk Utility will report the status of the drive after it has finished. If it indicates that the drive will soon fail, back up your files and then replace or reformat the faulty drive.

If the instructions above did not solve the problem, proceed to the next step.

5. Reinstall Mac OS X.


Parallels For Mac White Screen Windows 10

You should only try this solution if none of the previous steps have solved the problem. Reinstalling the operating system should fix any corrupted software without deleting your data and files, but you should back them up first if possible. When ready, follow these instructions:

  • Restart the Mac, and then press and hold down the Command R keys when you hear the start-up chime.
  • Release the keys when you see the Apple logo.
  • When the Mac has finished starting up, choose Reinstall OS X from the OS X Utilities menu, then click Continue.
  • Follow the instructions that appear until you finish the process.

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Once you have your Mac up and running again, install an optimizer app to keep it healthy. Cleaner One Pro can help prevent this problem from recurring by thoroughly cleaning junk files, removing duplicates, and highlighting large files. It also includes features like App Manager and Deep Uninstall to help remove unwanted apps completely. Cleaner One Pro even lets you monitor the performance of your Mac so you can discover any future problems before they become serious.

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