· You must be signed into the app in order to download other apps. If a download or update is stuck, try signing out and back in. To sign out of the Mac App store, open the app and go to Store in the menu bar. Select the sign out option. After signing out, it’s a good idea to restart your Mac and then sign back into the Mac App bltadwin.ruted Reading Time: 2 mins. · For example, you may need to do this if you notice that the Mac App Store is persistently showing a Mac OS installer as “Downloaded” despite not having completed the download as discussed in this Sierra troubleshooting detail. If you delete the temp cache data, it will allow you to re-download that Mac OS installer again in such a situation. · 1) Insert the Snow Leopard DVD and boot to it by restarting and holding down the Option key. Once the screen to choose a startup disk appears, choose the DVD and install Snow Leopard onto the hard drive. 2) Once the install is complete, your Mac will be at the newest since that was the last version released on disk.
Open the App Store application as usual, from /Applications/. Go to the "Purchases" tab. Scroll through the list until you find "OS X Mountain Lion" - do not use the Search box because it will try and fail by looking within the wider Mac App Store. Click on the grey "DOWNLOAD" button. Open the Mac App Store; Hold the Option key and click on "Purchases" Option-click on "OS X Lion" from the purchased app list "Installed' should now say "Install" which allows you to re-download OS X Lion, otherwise you can Option-click again on the "Install" button to start re-downloading OS X Lion, shown in the screenshot above. If you haven't peeked at the Mac App Store lately, go ahead and launch it, just to get your feet wet. Because you're already running macOS Mojave (in the beta form), you won't see the new OS as a download option in the new Mac App Store. Instead, you'll be able to update your beta copy to the Gold Master (GM) version using System.
Go to the Apple menu and choose “App Store”. Click on the “Purchases” tab and log in to your Apple ID if you haven’t done so already. Scroll through the list of purchased / downloaded apps and find “OS X Mavericks”, then click the “Download” button next to its name. Open the App Store and search for “OS X Mavericks” or just click the direct App Store link (free, downloading one times or is always free) Click the “Download” button and confirm that you want to download the OS X Installer again by choosing “Continue”. Scroll down the list of Purchased items to locate the Mac OS X Installer version you wish to re-download, then click on the download button This works particularly well if the Mac you’re downloading the software onto is running an older version of Mac OS X.
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