Mac OS X Snow Leopard (version 10.6) is the seventh major release of Mac OS X (now named macOS), Apple's desktop and server operating system for Macintosh computers. Snow Leopard was publicly unveiled on June 8, 2009 at the Apple Worldwide Developers Conference. MacOS Big Sur elevates the most advanced desktop operating system in the world to a new level of power and beauty. Experience Mac to the fullest with a refined new design. Enjoy the biggest Safari update ever. Discover new features for Maps and Messages. And get even more transparency around your privacy. Coming this fall.
In Windows 10, you decide when and how to get the latest updates to keep your device running smoothly and securely. To manage your options and see available updates, select Check for Windows updates. Or select the Start button, and then go to Settings > Update & Security > Windows Update.
Here's some other info you might be looking for:
If you get an error when trying to update, see Fix Windows Update issues.
If you're trying to activate Windows 10, see Activation in Windows 10 for more info.
If you're having trouble installing updates, see Troubleshoot problems updating Windows 10.
For answers to frequently asked questions, see Windows Update: FAQ.
To get the latest major update of Windows 10, see Get the Windows 10 May 2020 Update.
Streamlined apps
From full-height sidebars to refreshed toolbars, a clean new app design makes sure your content is always front and center.
Refreshed Dock
Streamlined apps
From full-height sidebars to refreshed toolbars, a clean new app design makes sure your content is always front and center.
Refreshed Dock
Operating System For Mac
A sleek design update makes getting to your favorite apps even easier. And a new uniform shape for app icons adds consistency while letting the personality of Mac shine through.
Control Center for Mac
Instantly access the controls you use most — like Wi-Fi and Bluetooth — and new controls to play music and enable Dark Mode for your display. Designed just for Mac, the new Control Center lets you add controls and drag favorites to the menu bar to customize it just for you.
Update My Mac Operating System
Notification Center
Update Operating System For Mac
A new design combines notifications and widgets in a single view for more information at a glance. Notifications are now grouped by app, and many are interactive — letting you do things like play new podcast episodes or learn more about Calendar invitations. And redesigned widgets come in three different sizes, so you can create the best view for you.