A flashing question mark indicates that the computer cannot find a bootable drive that it can run from. Either the drive is missing, corrupted, damaged or empty. Repair the Mac's keychain and rebuild your mailbox. This guide for transferring your Mail to a new Mac includes instructions for these procedures, which can help with forgotten passwords, incorrect message counts, and messages that don't display. It can help move your email, too, should you ever need to do so. Show the downloads list by clicking the Show Downloads button, then click the Resume button for the paused download. If you see a message that the app can't be opened because it's from an unidentified developer or wasn't downloaded from the Mac App Store, you can open the app by overriding the settings in Security & Privacy preferences. Time Machine is generally recommended for most MacBook Air users, but it doesn't do everything a backup app could possibly. For example, even though it copies your files and apps, it doesn't create what's called a 'bootable clone' of your MacBook Air, which is something you'd need if you want to have your MacBook (or another MacBook Air) running exactly as it did before. MacOS Sierra is the newest version of Mac OS which has recently become available for the Mac users to download. As always, there are some downsides to the new software updates that some computer users experience.
What Should do Before Upgrading to macOS Big Sur?
Although the every new macOS upgrade comes with certain exciting features, you need to know if your Mac computer can safely be updated (take Big Sur as an example). If you pay no attention to the details, macOS Big Sur update problems come with you for sure, probably your Mac update stuck or Mac failed update won't boot. Here are some of the things that you should look for before you upgrade to the new update.
1.Check compatibility. Big Sur requires any of the following Mac models: iMac; MacBook Pro; MacBook Air; MacBook; Mac Pro; Mac Mini.
2.Check minimum software and hardware requirements. You should have OS X Mountain Lion 10.8 or later. It requires at least 35.5GB of storage space to perform the Big Sur upgrade from macOS Sierra or later, 44.5GB from an earlier release.
3.Backup your Mac. To avoid any possible macOS Big Sur update problems, making a backup of your Mac comes essential. You can backup Mac with Time Backup Machine, iCloud, iTunes, or any other third-party Mac backup tools like MacX MediaTrans.
Safari User Guide
Safari can download most types of files, but if you have trouble with a file, try these suggestions.
If Safari is still downloading the file, wait for it to finish. You can't open a file while it's being downloaded.
If the download is paused, resume it. Show the downloads list by clicking the Show Downloads button , then click the Resume button for the paused download.
If you see a message that the app can't be opened because it's from an unidentified developer or wasn't downloaded from the Mac App Store, you can open the app by overriding the settings in Security & Privacy preferences.
Sometimes a download is incomplete because the file was damaged. Try downloading it again.
Make sure you have the app needed to open the file. If you do, the file may have been corrupted during the download. Delete it, then try downloading it again.
The downloaded file may be a compressed archive or disk image that contains the file you want. If the file is from a trusted site, double-click it to decompress it.
Although the every new macOS upgrade comes with certain exciting features, you need to know if your Mac computer can safely be updated (take Big Sur as an example). If you pay no attention to the details, macOS Big Sur update problems come with you for sure, probably your Mac update stuck or Mac failed update won't boot. Here are some of the things that you should look for before you upgrade to the new update.
1.Check compatibility. Big Sur requires any of the following Mac models: iMac; MacBook Pro; MacBook Air; MacBook; Mac Pro; Mac Mini.
2.Check minimum software and hardware requirements. You should have OS X Mountain Lion 10.8 or later. It requires at least 35.5GB of storage space to perform the Big Sur upgrade from macOS Sierra or later, 44.5GB from an earlier release.
3.Backup your Mac. To avoid any possible macOS Big Sur update problems, making a backup of your Mac comes essential. You can backup Mac with Time Backup Machine, iCloud, iTunes, or any other third-party Mac backup tools like MacX MediaTrans.
Safari User Guide
Safari can download most types of files, but if you have trouble with a file, try these suggestions.
If Safari is still downloading the file, wait for it to finish. You can't open a file while it's being downloaded.
If the download is paused, resume it. Show the downloads list by clicking the Show Downloads button , then click the Resume button for the paused download.
If you see a message that the app can't be opened because it's from an unidentified developer or wasn't downloaded from the Mac App Store, you can open the app by overriding the settings in Security & Privacy preferences.
Sometimes a download is incomplete because the file was damaged. Try downloading it again.
Make sure you have the app needed to open the file. If you do, the file may have been corrupted during the download. Delete it, then try downloading it again.
The downloaded file may be a compressed archive or disk image that contains the file you want. If the file is from a trusted site, double-click it to decompress it.
Macbook Air Why Did My Download Failing
