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In Disk Utility, click on the First Aid button,.

Once rebooted, you should be in the Internet Recovery Partition.

During reboot, hold down Command-R until it starts up.

With Apple's Internet Recovery partition, fixing a cranky drive is an easy process.

#Mac adware cleaner keeps coming back software#

If software updates aren't doing the trick, the next thing to check is the hard drive itself.

#Mac adware cleaner keeps coming back install#

Install system data files and security updates.Download newly available updates in the background.Under Automatically check for updates, check the following boxes: With the Mac App Store open, click on App Store in the upper left corner of the Menu bar.If the computer is running macOS Sierra, you can avoid having to do this troubleshooting step in the future by turning on Automatic Install in System Preferences, which can automatically download newly available updates in the background, and install them overnight. (You may need the Apple ID and password for the machine.) Click on the Updates tab at the top of the Mac App Store window.Select App Store to open the Mac App Store. Click on the Apple menu icon in the upper left corner of the screen.VPN Deals: Lifetime license for $16, monthly plans at $1 & more

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This is almost always the first thing I do when troubleshooting Macs: Chances are, the user hasn't installed a security update or other software updates that may be slowing their computer to a crawl. If you're working on a computer that has slowed down beyond reasonable aging or is otherwise acting beyond the pale, here are my favorite tactics you can take to try and restore it to its former glory. I knew I had a malfunctioning laptop on my hands, so I turned to my age-old troubleshooting checklist. But because they were there, they were constantly crashing aspects of his Mac. These hijacks didn't appear to be able to do much beyond slow down his machine with endless failed attempts to run a program -В the process didn't have admin permissions, so it couldn't execute a thing from the library. It's likely that he accidentally installed one of these 'security' programs (or had it installed), which spiraled out of control from there.

Now, I want to preface: I'd never seen an attack like this on a Mac before in my life, and finding this kind of full-Mac hijack is very rare. And worst of all, they'd seemingly added a bunch of nonsense files into this computer's Library folder, with random folder names like 'prestidigitation' and 'beeswax'. Upon further investigation, I found a couple of self-professed 'Mac security programs' that popped up, demanding money to 'clean your Mac from junk'. We got rid of the browser hijack pretty quickly -В I suggest using Cella's excellent how-to if you ever run into a browser hijack yourself -В but the slowdowns were more curious. It was clear to me that his browser had been hijacked.

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My father-in-law's MacBook Pro had been running into curious slowdowns for a two-year-old laptop and he kept on seeing weird sites taking over his Safari and Firefox search bars. Serenity Caldwell writing for iMore in 2017:

The problem: Mac malware in the Library folder

The problem: Mac malware in the Library folder.

There are things you can do without having to burn it all down. It happens to the best of us (not me, of course). If your Mac is running slow or you're seeing unusual advertisements within your web browser you might have accidentally installed malware at some point. Though it's not easy to hack into or break through a Mac's security, it is possible, especially if someone accidentally installs malware without realizing it.