Here's what you need to do: 1. Re-install Mac OS (don't choose an option that keeps the old files, wipe it clean!) 2. Free video converter for a mac. After re-installing, open Disk Utility, and run the Erase Free Space utility on your newly formatted drive. This will ensure that your old files can't be recovered. If you want your personal data off of your Macbook, simply doing step one will NOT be enough!!! Erasing and deleting are two different things.

1. How To Clean A Mac Screen
2. How To Clean A Mac Computer

(Step one deletes, step 2 erases.) Also, what chipperz posted should work. Message was edited by: musicmannn. What you can do is archive and install, that'll keep your data in a folder which you can transfer to the new install. Alternatively, you could use Time Machine to backup, then selectively restore what you want. Another option is to use the Migration Assistant. With regard to your webcam, I think it's possible that an update to Adobe Flash changed your privacy settings to prevent the website from accessing your webcam. Try right clicking in the Flash applet, going to Settings, and check that allow Webcam use is checked.

Select Reinstall Mac OS X, click Continue, and then follow the instructions. Learn more OS X includes a built-in Recovery system that you can use to reinstall Mac OS X, repair a disk, restore from a Time Machine backup, and more. Now choose 'Mac OS Extended (Journaled)' and name the drive Click erase (doing this step deletes the previous user's data) Close disk utility with either the red x top left or you may have to click 'disk utility' top left and click quit on the drop-down to get back to the main screen (like first image).

How To Clean A Mac Screen

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MacOS Sierra is Apple's latest desktop operating system, which succeeds OS X El Capitan and adopts a new name to bring it in line with iOS, watchOS, and tvOS. The OS will come pre-installed on all new Macs once current stock is depleted and is a free download for existing Mac owners. The main new feature in macOS Sierra is deep Siri integration, bringing Apple's personal assistant to the Mac for the first time.

It also adds new features to Photos and Messages, and includes Continuity smarts like Universal Clipboard and an Auto Unlock option for Apple Watch owners. This tutorial explains how to download macOS Sierra and perform a clean install, which offers several benefits over the automatic upgrade process included in the installation package. Benefits of a Clean Install A clean install can remove annoying quirks and strange behaviors that your Mac may have inherited over time due to driver upgrades, wonky apps, and messy installation procedures. Performing a fresh install can also reclaim lost disk space caused by junk files left by third-party apps, and can generally make your Mac feel a lot snappier, enabling you to relive that feeling of booting it up for the first time. To complete the clean install procedure described below, you'll need an 8GB or larger USB thumb drive and an hour or two to spare.

How To Clean A Mac Computer

You should also perform a full backup of your Mac beforehand using Time Machine. That way you can restore your system from the Recovery partition if something goes wrong. Best word processor for mac. Alternatively, save a bootable mirror image of your system to an external drive using a clone utility like ($27.95) or ($39.99). Compatibility Check Before you do anything, check that your Mac is compatible with Apple's new operating system. Are mac computers virus free. MacOS Sierra supports the following: • iMac (Late 2009 or newer) • MacBook Air (2010 or newer) • MacBook (Late 2009 or newer) • Mac mini (2010 or newer) • MacBook Pro (2010 or newer) • Mac Pro (2010 or newer) Another way of checking if your Mac is compatible is to open the Apple menu in the upper left corner of your Mac's screen and selecting About This Mac.