Most people do Mavericks installations over Lion, Mountain Lion or Snow Leopard without having an empty drive, but this might be needed in some situations. For example, you might want to do the installation on a second drive in order to test out the OS before doing the final upgrade to the main drive, or might want to delete Mac's start-up drive. Net Applications' latest data showed that 93% of current Macs run last year's Mountain Lion, 2011's Lion or 2009's Snow Leopard, all eligible for the free upgrade to Mavericks. After osx mavericks update i lost all my files and apps from osx lion, is there any way to get it back? Everything was deleted what was on destop in osx lion, apps, pictures and etc. Upgrade from Mountain Lion to Mavericks and my iMac got slower.
- Make sure you've tried using the File | Default Options command first, since this solves more than 50% of reported problems.
- If you're having a problem with VueScan hanging or not finding your USB scanner, it's almost always a problem with the USB cable. Try a newer and/or shorter USB cable, a different USB port, or a USB 2.0 hub.
- If you have a Canon printer/scanner/copier and it's not responding, try unplugging it, waiting a minute, plugging it back in and running VueScan again.
- If VueScan can't find your scanner on the network, make sure the firewalls in in your computer and your router aren't blocking mDNS (UDP port 5353). If it's an older Canon printer/scanner/copier, also check UDP port 8612.
- If you can't scan film with your flatbed, make sure you've removed the white plastic cover from the lamp in the lid, and make sure you've put the black plastic film holder on the glass properly.
- You'll usually get a one or two line answer, but you'll get this answer directly from Ed Hamrick
- Many answers are form letters, but be assured that your problem report has been carefully read.
Upgrade to macOS Big Sur
- Learn how to upgrade to macOS Mojave to have the best performance, security, and features that let you do more than ever on your Mac. Get Tech Support 1-833-202-2695 Enterprise Solutions ›.
- Support while shopping at Amazon Amazon US - For more info see If my video helps you please lik.
Before installing this upgrade, make sure that your Mac is ready.
Check compatibility
macOS Big Sur supports most Mac models introduced in 2013 and later.
View compatible Mac modelsMake a backup
Before you upgrade, make a complete backup with Time Machine, or store your files in iCloud.
Mavericks Upgrade From Lion
Learn how to back up your MacFree up space
If the installer needs more storage space to upgrade, you can free up space using tools that come with your Mac.
Free up storage spaceDownload macOS Big Sur
If you're using macOS Mojave or later, choose Apple menu > System Preferences, then click Software Update. If you're using an earlier macOS, use the App Store instead.
Get to know macOS Big Sur
Learn about some of the new features of macOS Big Sur.
Control Center
Control Center brings favorite controls such as Bluetooth, Wi-Fi, Do Not Disturb, and Sound together in a single place—so you can easily adjust them at any time.
Mavericks Upgrade From Lion Brand
Use Control CenterNotification Center
Notification Center puts notifications and>
Safari
Customize your start page, navigate with ease using the new tab bar, and access a new privacy report to see just how Safari protects your privacy as you browse.
Get to know SafariMaps
Discover great places around the world and navigate easier with guides, indoor maps, Look Around, electric vehicle routing, and more.
Mavericks Upgrade From Lion Guard
Messages
Send messages to friends and family using new tools that make it easier to keep track of group conversations and give you fun, engaging ways to express yourself.
Use MessagesPhotos
Use the expanded editing capabilities in Photos to easily make simple changes and more advanced adjustments to your photos. Where do screenshots go.
Learn how to edit your photosHave a question?
Ask everyone. Our Apple Support Community can help you find answers.
Ask nowTell us how we can help
Before installing this upgrade, make sure that your Mac is ready.
Check compatibility
macOS Big Sur supports most Mac models introduced in 2013 and later.
View compatible Mac modelsMake a backup
Before you upgrade, make a complete backup with Time Machine, or store your files in iCloud.
Mavericks Upgrade From Lion
Learn how to back up your MacFree up space
If the installer needs more storage space to upgrade, you can free up space using tools that come with your Mac.
Free up storage spaceDownload macOS Big Sur
If you're using macOS Mojave or later, choose Apple menu > System Preferences, then click Software Update. If you're using an earlier macOS, use the App Store instead.
Get to know macOS Big Sur
Learn about some of the new features of macOS Big Sur.
Control Center
Control Center brings favorite controls such as Bluetooth, Wi-Fi, Do Not Disturb, and Sound together in a single place—so you can easily adjust them at any time.
Mavericks Upgrade From Lion Brand
Use Control CenterNotification Center
Notification Center puts notifications and>
Safari
Customize your start page, navigate with ease using the new tab bar, and access a new privacy report to see just how Safari protects your privacy as you browse.
Get to know SafariMaps
Discover great places around the world and navigate easier with guides, indoor maps, Look Around, electric vehicle routing, and more.
Mavericks Upgrade From Lion Guard
Messages
Send messages to friends and family using new tools that make it easier to keep track of group conversations and give you fun, engaging ways to express yourself.
Use MessagesPhotos
Use the expanded editing capabilities in Photos to easily make simple changes and more advanced adjustments to your photos. Where do screenshots go.
Learn how to edit your photosHave a question?
Ask everyone. Our Apple Support Community can help you find answers.
Ask nowTell us how we can help
Answer a few questions and we'll help you find a solution.
Get support