Just accept the updates and they’ll download automatically. When new updates are available, mac OS sends you a notification. To make sure you are informed about Mac updates, note the notifications and number of available updates displayed in the icon of the App Store.app in the Dock. More information about Windows Update can be found online. The best way to keep your computer secure is to run the latest software.

To open Time Machine Preferences, go to the Apple Menu -> System Preferences -> Time Machine.

Follow the instructions in Time Machine preferences.

You’ll be asked if you want to use the disk to back up your Mac.

Connect an external hard disk to your Mac and turn it on.

It also keeps multiple versions of your files. Used with an external storage device, if anything happens to your computer, all of your files will be recoverable from the external drive. Mac has Time Machine that allows you to back up your entire Mac, including system files, apps, music, photos, emails and documents.

From the list you can select restore points to a state before you were experiencing the problem.

Windows uses a restore utility that automatically backs up selected system files.

Safe mode is only necessary if initial scans fail, in most cases Safe Mode is not required to clean a Mac.

When you first start your computer, hold down the Shift key.

Select Troubleshoot -> Advanced Options -> Windows Startup Settings.

When you first start your computer, hold down the Shift key to boot into the Recovery Environment.

See below for instructions on creating a recovery drive.

You can also boot from recovery media stored on a USB drive.Or if you’ll need to use the Internet, select 5 or F5 for Safe Mode with Networking. Select 4 or F4 to start your PC in Safe Mode.

After your PC restarts, you’ll see a list of options.After your PC restarts to the Choose an option screen, select Troubleshoot -> Advanced options -> Startup Settings -> Restart.When you first start your computer and you get to the sign-in screen, hold down the Shift key while you select Power -> Restart.Safe mode only loads the drivers needed to operate windows, so any potential viruses will not load in this mode. The best way to scan a computer for viruses is to boot the computer in safe mode. Follow the instructions below to clean up your computer and keep it secure.

How to scan files on mac for viruses