Download the app from the App Store on your iPad. To do this, launch the App Store app on your iPad and choose the previously purchased tab. On this tab, you will see your most recent purchases, including those done on a PC or Mac. Tap the cloud button next to the app icon to start the download. You are not charged again for apps you've already. Can't Install Office 365 apps for Students I've successfully created an Office 365 account with my student email, however there seem to be no option to download Office 365 apps like Word, PowerPoint, Excel in the list of software I can install. Change Allow apps downloaded from: to App Store and identified developers. Note: For Mac High Sierra (10.13.x), you will need to click on Allow too. Click the lock icon again to prevent any further changes. Installing the Zoom application. Visit our Download Center. Under Zoom Client for Meetings, click Download. Double click the downloaded file. But there are thousands of additional apps that you can download through the Mac App Store to give your computer even more capabilities. They run the gamut: utilities, productivity tools, games, and everything else imaginable. Thousands of Mac developers offer apps from the Mac App Store, and they're yours for the taking. Some Mac users say that they can't download programs from other website except Mac App Store, or they may can't be opened the download file. When they click on the download file, it says 'xxx can't be opened because it is from an unidentified developer'.
Check compatibility
You can upgrade to macOS Sierra from OS X Lion or later on any of the following Mac models. Your Mac also needs at least 2GB of memory and 8.8GB of available storage space.
MacBook introduced in late 2009 or later
MacBook Air introduced in late 2010 or later
MacBook Pro introduced in mid 2010 or later
Mac mini introduced in mid 2010 or later
iMac introduced in late 2009 or later
Mac Pro introduced in mid 2010 or later
To find your Mac model, memory, storage space, and macOS version, choose About This Mac from the Apple menu . If your Mac isn't compatible with macOS Sierra, the installer will let you know.
Make a backup
Before installing any upgrade, it’s a good idea to back up your Mac. Time Machine makes it simple, and other backup methods are also available. Learn how to back up your Mac.
Get connected
It takes time to download and install macOS, so make sure that you have a reliable Internet connection. If you're using a Mac notebook computer, plug it into AC power.
Download macOS Sierra
For the strongest security and latest features, find out whether you can upgrade to macOS Catalina, the latest version of the Mac operating system.
If you still need macOS Sierra, use this link: Download macOS Sierra. A file named InstallOS.dmg will download to your Mac.
Install the macOS installer
Double-click the downloaded file to open a window showing its contents. Then double-click the file within, named InstallOS.pkg.
Follow the onscreen instructions, which will guide you through the steps necessary to install.
Begin installation
After installation of the installer is complete, open the Applications folder on your Mac, then double-click the file named Install macOS Sierra.
Click Continue and follow the onscreen instructions. You might find it easiest to begin installation in the evening so that it can complete overnight, if needed.
Can T Download Apps On Microsoft Store
Allow installation to complete
Please allow installation to complete without putting your Mac to sleep or closing its lid. Your Mac might restart, show a progress bar, or show a blank screen several times as it installs both macOS and related updates to your Mac firmware.
Learn more
- If you have hardware or software that isn't compatible with macOS Sierra, you might be able to install the previous version, OS X El Capitan.
- macOS Sierra won't install on top of a later version of macOS, but you can erase your disk first or install on another disk.
- You can use macOS Recovery to reinstall macOS.
I had the same problem and just thought I'd share my findings (as it took me ages to find the answer).
- Sign out of App Store.
- Sign out of iTunes.
- Sign into the App Store.
- Sign into iTunes.
- Accept the iTunes Terms.
- Close both App Store and iTunes.
- Open Terminal
- Run the following command: sudo find /private/var/folders -type d -name com.apple.appstore -exec rm -rf {} ;
- Input password when prompted.
- Run this command to reboot your mac: sudo reboot
- After reboot open App Store and try to purchase a app.
Allow Apps Downloaded From Mac
Apps Not Opening On Mac
That fixed the issue for me, I hope it does the same for you :-)