Quit the Mac App Store if it's open. From the menu bar App Store / Quit App Store. Or Command + Q on your keyboard. Launch iTunes then from the iTunes menu bar click iTunes / Preferences then select the Advanced tab. Click: Reset warnings and Reset cache. Now from the iTunes menu bar click Store / Sign Out. Try the Mac App Store. I have a WD passport that won’t open! I recently updated my Mac to OS Catalina, and I think that is the reason why. The WD SmartWare Icon appears on my desktop. When I push it, I get into a folder. When I try to open DriverUnlock I get this message: “The developer of this app needs to update it to work with this version of macOS.

Part 2: How to Update to iOS 14 on iPhone iPad Easily and Quickly

* First, this guide has two parts: how to upgrade to iOS 14 and how to fix iOS 14 update problems of any kind. If you already know the process but encounter problems, check Part 1. Otherwise, stay with this part and check Part 1 if you unfortunately get any iOS 14 update errors.
* To avoid any unnecessary problems, first check if iOS 14 is available for your device, namely you need an iPhone 6S or later.

Step 1: iOS 14 Update - Backup iOS Data

To backup data on iPhone, iPad and iPod for iOS 14 updating, there are three ways:

* iCloud backup: backup camera roll, accounts, documents, and settings and won't cover jailbreak tweaks and apps. If your live photos or 4K pictures are larger than 5GB, you need to pay for extra storage.

* iTunes backup: make a full copy on computer. It won't backup non-iTunes purchased media and takes quite a long time to perform the full backup.

Updated Mac And Now Apps Wont Opening

* Third-party backup tool: e.g. MacX MediaTrans, it freely backups music, photos, videos, movies, TV shows, books, iTunes DRM-protected purchases and more (including jailbroken files) by drag and drop. Backup whatever you think important in a flash.

Get the one-click backup tool:
Free download Mac version
Free download Windows version

Step 2: Upgrade to iOS 14- Download and Install iOS 14

After you backup iPhone to Mac to avoid data loss problem, now let's see how to download and install iOS 14 on iPhone without errors. Of course, you can skip this part if you have the experience to download and install iOS 13, similar.

* 1 Update iDevices Over-the-air
Plug in iDevices and connect to Wi-Fi. Tap Settings > General > Software Update > Download and Install. Note: 1, this way is easier; 2, iOS 14 OTA update may take a long time as it requires Wi-Fi internet; 3, there are users reporting iDevices bricking problems during iOS 14 update OTA; 4, jailbroken iPhone can't follow this way.

* 2 How to upgrade to iOS 14 via iTunes
Connect iPhone iPad to computer > open iTunes on computer > click device icon > Check for Update > Download and Update> Agree the Terms and Conditions. This way is faster than iTunes 12 OTA update and apply to jailbroken iPhone iPad.

Author: Abby Poole | Updated on June 19, 2020

Mac fails to boot or start after the macOS update. Whatever is preventing your Mac from starting up, follow these 5 simple solutions to get it working again. If you have data loss problem after macOS update, EaseUS Data Recovery Wizard for Mac provides tried-and-true data recovery service to you.

This page covers 5 fixes for Mac won't boot or start issue after macOS Catalina, Sierra or older macOS update issue. If you are with this issue, follow to make your Mac computer work now:

Workable Solutions	Step-by-step Troubleshooting
Fix 1. Fix PRAM/NVRAM	Restart Mac > Hold Command+Option+P+R keys to turn on Mac..Full steps
Fix 2. Reset SMC	Shut down Mac > Unplug all cables > Plug in cables back after a few minutes..Full steps
Fix 3. Boot in Safe Mode	Start Mac > Hold 'Shift' until the login window appears > Release the key when login in window appears..Full steps
Fix 4. Run Disk Utility	Turn of Mac > Hold Command + R keys and power Mac back up > Enter recovery mode..Full steps
Fix 5. Reinstall macOS	Download macOS Catalina, Mojave, or Sierra > Create bootable USB > Clean install macOS..Full steps

macOS has now been updated to 10.15, and many Mac users are trying to upgrade to the newest version. While for most it’s a usual pleasurable experience, for some this update had downsides. Some users complain that their Mac computers won't boot after installing new macOS Catalina. When Mac fails, it usually can't boot or start up properly. If you are faced with this situation, the most important thing should be recovering data from the unbootable Mac because:

Your attempts to fix the Mac not booting issue may write new data on this Mac, which will overwrite the old data and make it irrecoverable.
Recovering data before the complex fixes can avoid data loss.

EaseUS Mac data recovery software is able to recover data from unbootable Macs after update. It creates a bootable media that enables you to recover data from Mac hard drive (If you only have one Mac). What's more, it recovers data from failed internal Mac hard drive, APFS boot drive, and unmountable APFS boot volume, etc. If you have two Mac devices, take out the hard drive and connect it to the other Mac. Download EaseUS Data Recovery Wizard for Mac on that Mac device, and recover data from the hard drive.

Then, you can read on and Fix the 'Mac won't boot after update' issue after you have successfully got data from the drive.

1. Reset the PRAM / NVRAM

NVRAM refers to special memory sections on your Mac that store data that persists even when the Mac is shut off, such as volume settings and screen resolution. Resetting that data isn't harmful! In some cases, after performing this step, your Mac will restart normally.

Restart your Mac
Hold down all of these keys: 'Command', 'Option', 'P' and 'R', and turn on the Mac. (It's the same keys to reset the PRAM).
Keep holding the keys down until you hear the Mac restart again.

You may see a progress bar on startup. If the progress bar fills up and then the Mac starts up, you're probably good to go. If not, reset SMC.

2. Reset the SMC

In some situations, you may need to reset your Mac's SMC (System Management Controller).

Shut the Mac down.
Unplug all cables.
Wait for a few minutes.
Plug the cables back in and start up the Mac.

If you've got a Mac desktop, unplug it for 15 seconds and then plug it in and after five seconds press the power button.

3. Boot Mac in Safe Mode

Safe Mode is a stripped-down version of the Mac operating system that can be useful if you are trying to troubleshoot issues with your Mac.

Start your Mac, press and hold the 'Shift' key, and make sure your Mac has at least 9 GB of free space.
When the login window appears to release the shift key and log in. You may be required to log in twice if you have FileVault turned on. Then restart the device.

Wait patiently till Mac computer finish the reboot process.

4. Run Disk Utility in Recovery Mode

Updated Mac And Now Apps Won't Open Automatically

If your Mac is booting but the operating system isn't loading up, you may have a corrupted drive. Luckily it is possible to fix this in Recovery Mode. In Recovery Mode you can restore from a Time Machine backup, use Disk Utility to verify and repair connected drives, check your internet connection, get help online using Safari, and install or reinstall macOS.

Mac Can't Open App

Make sure the Mac is