Had a patron who accidently manually removed Cisco VPN from Apple computer, but when they tried doing re-install, said program was installed.
Need to remove the package manually using Terminal:
pkgutil --pkgsYou'll locate the package in the list of all packages installed....
com.cisco.pkg.anyconnect.vpnThen it's just a simple matter to tell the package DB to forget it with....
sudo pkgutil --forget com.cisco.pkg.anyconnect.vpnThe majority of the students in my law school have Apple laptops, and I try to help them fix the basic issues:
No matter how much internal storage your Mac came with, you always want to keep at least 10 percent of it empty to make sure your Mac runs smoothly.
Open the Apple menu and select About This Mac > Storage to find out how much storage you're currently using. This shows you a breakdown of the file types taking up your storage, including System, Documents, Photos, and more.
If you don't have much free space, click Manage to see what you can do about it.
Also, check out our guide on creating free space on your Mac for the best space-saving tips. We'll show you how to uninstall old apps, find and delete large files, and move your documents to the cloud.
Activity Monitor is built into macOS and shows you which apps and processes are using your computing power. If your Mac feels like it needs a tune-up, you can use Activity Monitor to find out which apps are slowing it down.
Launch Activity Monitor from the Utilities folder in your Applications, or by searching for it with Spotlight (Cmd + Space).
Then use the CPU tab to find apps or processes using a large percentage of your CPU. You can also use the Memory tab to see which apps and processes are using your RAM.
If you find an app or process using more power than it should, highlight it and click the Stop Sign icon to close it down. Make sure you only close processes you're familiar with to avoid damaging macOS.
Is your Mac slow to boot up? You might have too many applications opening at startup. Go to System Preferences > Users & Groups and select your user account. Then click the Login Items tab to see a list of everything that launches whenever you log in.
Highlight the apps you don't always want to open and click the Minus (-) button to remove them. This doesn't delete the app from your Mac; it only stops it launching automatically when you log in.
4. Run a Scan for Malware
Your Mac is less likely to become infected with malware than a Windows PC, but it's not impossible. In fact, if you don't follow best practices it can still be easy to infect your Mac with malware by mistake.
Download and install Malwarebytes---the best antivirus software for Mac---to run a scan on your Mac. You don't need to keep this app open all the time; just run a scan using the free version every now and then to give your Mac a quick tune-up.
Download: Malwarebytes for macOS (Free, subscription available)
Over time, your Mac builds up caches of files from various applications and websites that it uses to load content faster. Unfortunately, these caches sometimes get so large---20GB or more in some cases---that they become more of a hindrance than a help.
You can safely empty the caches from the Library folder in Finder. After you do so, some apps may appear slower as your Mac builds the caches up again, but before long your Mac will run better than before.
To clear the caches:
https://www.makeuseof.com/tag/quick-ways-to-tune-up-your-mac/
If an app has frozen and quitting it won’t work, Ctrl+click its icon in the Dock, then hover the pointer over the Quit button. Hold Option (labelled as Alt on some Mac keyboards) and Quit becomes Force Quit; click this.
Alternatively, try pressing Opt+Cmd+Esc to open the Force Quit window. Select the app you want to close, then click Force Quit (or Relaunch if Finder has frozen), then click Force Quit on the confirmation dialog box.
If your Mac is entirely locked up and the above steps won’t work, press Ctrl+Opt+Cmd and the power button at the same time; this will reboot your Mac.
A. For years, Mac computers did not come with utilities like Disk Cleanup and the newer Storage Sense found in Windows, but Apple added new tools in 2016 with the release of its macOS Sierra system. If your Mac is running at least that version of the system, go to the Apple Menu, select About This Mac and click the Storage tab.On the Storage screen, you should see a graphic showing your drive’s available space. Click the Manage button on the right side of the box to get started. The resulting storage-management screen offers four ways to clear off old files: Store in iCloud, Optimize Storage, Empty Trash Automatically and Reduce Clutter.As one might expect, the Store in iCloud option punts documents, photos and Messages off your Mac’s drive and into your iCloud online storage locker. While this does free up room on the computer, you may have to buy more iCloud storage space from Apple if you fill up your five gigabytes that come free with an iCloud account.
| Hold during startup | Description |
|---|---|
| Shift (⇧) | Start up in safe mode. |
| Option (⌥) | Start up to Startup Manager, which allows you to choose other startup disks, if available. If your Mac is using a firmware password, you're asked to enter the password first. |
| C | Start up from an available CD, DVD, or USB thumb drive that contains
a valid operating system for your Mac. Or use Startup Manager, as
described above. |
| D | Start up from the built-in Apple Hardware Test or Apple Diagnostics utility, depending on your Mac model. Or use Option-D to start up from this utility over the Internet. |
| N | Start up from a compatible NetBoot server, if available. To use the default boot image on the NetBoot server, hold down Option-N instead. |
| Command-R | Start up from the built-in macOS Recovery system. Or use Option-Command-R or Shift-Option-Command-R to start up from macOS Recovery over the Internet. macOS Recovery installs different versions of macOS, depending on the key combination you use while starting up. |
| Option-Command (⌘)-P-R | Reset NVRAM (or PRAM). If your Mac is using a firmware password, this combination causes your Mac to start up from macOS Recovery instead. Turn off the firmware password from macOS Recovery, then restart and reset NVRAM. |
| Command-S | Start up in single-user mode. |
| T | Start up in target disk mode. |
| X | Start up from your macOS startup disk when your Mac would otherwise start up from a non-macOS startup disk, such as a Windows partition. Or use Startup Manager, as described above. |
| Command-V | Start up in verbose mode. |
| Eject (⏏), F12, mouse button, or trackpad button | Eject removable media, such as an optical disc. |
If you have an iMac made in mid-2011 or later, then one thing you can do with it is to use it as an external monitor. Similar to Target Disk mode, where one Mac's internal hard drives can be mounted as external drives via FireWire or Thunderbolt to another system,
Target Display mode allows an iMac's display to be captured and used by a second Mac.
While Target Disk mode requires you to restart the Mac, Target Display mode can be invoked from within OS X.
To do this, first check the model of your iMac to ensure it was made in 2011 or later, and then simply press Command-F2. Note that on most Macs, the F-keys are assigned to a system function by default, so you will either have to revert this in the Keyboard system preferences, or hold the "Fn" key in addition to the Command key before tapping F2.
When you press this hotkey, the system will remain running, but the display will now be accessible through the Thunderbolt connection of the iMac.
sudo nano /etc/fstab
LABEL=NAME none ntfs rw,auto,nobrowse
sudo /Applications/Install\ macOS\
Sierra.app/Contents/Resources/createinstallmedia --volume
/Volumes/Untitled --applicationpath /Applications/Install\ macOS\
Sierra.app --nointeraction
Apple has actually included a terminal command that can create an install disk for you. Assuming that you have the OS X El Capitan installer in your Applications folder and you have a Mac OS X Extended (Journaled)-formatted USB drive named "Untitled" mounted on the system, you can create an El Capitan install drive by typing the following command into the Terminal.
sudo /Applications/Install\ OS\ X\ El\
Capitan.app/Contents/Resources/createinstallmedia --volume
/Volumes/Untitled --applicationpath /Applications/Install\ OS\ X\ El\
Capitan.app --nointeraction
