What should i do if my mac has a virus
With Apple's Internet Recovery partition, fixing a cranky drive is an easy process. Your Mac will then run a cursory check on its hard drive to determine if there's anything wrong — and if so — if it can fix it. If neither app updates nor disk repair are helping, sometimes a good cache flush can get your Mac running just a bit more smoothly. After you reset your NVRAM, you may be required to reconfigure some system settings like sound and time zones , which are stored in that cache.
An SMC reset is a bit more complicated, and Apple recommends it only after all other troubleshooting avenues have been exhausted. After exhausting all other avenues, this was the solution we came across to properly fix the broken laptop. The hard drive had been so corrupted by these "security" programs that there was nothing I could do to fix it.
When Safari launched over the login screen after a reboot, I knew my usual fixes wouldn't work: It was time to bring out the big guns. In most cases, I'd grab an external drive, back up the corrupted disk, then wipe the drive clean with the Internet Recovery partition and start over. But there were a couple of reasons that wouldn't work here:. Essentially, it would be a "clean" new computer for my father-in-law to work on, but all the original data would still exist on the old partition in case he needed to grab a file. If you're light on space, you may want to back up your corrupted disk to a USB drive, instead.
Disk Utility will check the disk and make changes. This will take several minutes.
How to fix a corrupted Mac
Disk Utility will then make the changes. After that's completed, quit Disk Utility to return to the main Internet Recovery menu. After you finish setting up the new hard drive, it's time to move your files over. Because of the way partitioning works, your old hard drive partition will show up next to your currently-active partition, just like an external drive; you can then grab any files you need from it. From here, you can follow instructions for setting a Mac up from scratch when it comes to installing and customizing anything else.
I generally recommend keeping the old drive partition around for at least a few months in case you or your family member forgets to move something over; after that period, however, you can easily delete the old partition and move to the new partition full time. While malware on the Mac is rare, it does crop up, as we've demonstrated. Having the right tools to get rid of malware can be an important part of keeping your Mac safe and secure. There are a number of tools that you can choose from, including popular programs like BitDefender and Kaspersky, that will help you keep malware from infecting your Mac.
Do I need anti-virus software on my Mac? Updated July Added a sub-section regarding anti-malware protection.
We may earn a commission for purchases using our links. Learn more. What would it be like if a dog manned the International Space Station? Protecting the outside of your MacBook is a great way to protect its precious insides. Pick up a hard shell cover and save it from scratches and bumps. Here are our favorites! Joseph Keller is a senior writer at iMore. An Apple user for more than a decade and a half, he spends his time learning the ins and outs of iOS and macOS, always finding ways of getting the most out of his iPhone, iPad, and Mac.
Skip to main content. Black Friday at Dell: Check out the best deals now! Forums Shop Toggle Search. How to fix a corrupted Mac 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. Update the system software 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.
Click on the Apple menu icon in the upper left corner of the screen. Click on the Updates tab at the top of the Mac App Store window. Click on Preferences. Under Automatically check for updates , check the following boxes: Download newly available updates in the background Install app updates Install macOS updates Install system data files and security updates Check the disk for errors If software updates aren't doing the trick, the next thing to check is the hard drive itself.
Restart your Mac. During reboot, hold down Command-R until it starts up. Once rebooted, you should be in the Internet Recovery Partition. Select Disk Utility. Click Continue. If you're using a laptop: Shut down your Mac and plug it in. Restart the computer by pressing the Power button along with the keyboard command Shift-Control-Option.
Release these keys, then just press the Power button to properly start your computer. If you're using a desktop: Shut down your Mac. Unplug it and wait for at least 20 seconds. Plug the Mac back in and wait seconds.
Restart your Mac with the Power button. When it comes to detecting and removing malware on the disk, they are the same. With the Premium version, you get additional benefits such as scheduled scans and real-time detection. The free version removes malware only when the malware is already on the disk, and the Premium version can prevent malware from being downloaded.
The natural question is which one to choose? I tried to find the answer, and here are my findings:. There are good several antimalware software choices. You can search for rankings published by bloggers, but the thing is they are more likely to promote their affiliate links. So, how do you choose? The decision depends on your browsing habits. If you are relatively conservative and cautious when clicking on links, then free AV may be good enough for you.
If you often visit sites that likely to have malware torrents, adult, social media then invest in active protection provided by paid versions. When choosing the antimalware, consider testing at least two solutions. Then select the one that easier to use. The last thing you want is an antivirus that slows down the computer. Am I fully protected if I install an antimalware software? Unfortunately, not. There is a term called zero-day vulnerability. The usual cycle goes like this: someone finds a vulnerability in the software, e. The first day the vulnerability is found is called zero-day.
The hackers will create a software that exploits the vulnerability, and every computer is at risk even the ones that have an antivirus installed. Then antivirus companies find a solution which needs to be downloaded and installed on the computer.
How to remove a virus from a Mac
The shorter the period between discovering a vulnerability and the fix fewer computers will be affected. Bottom line, antimalware products protect from known viruses; they do not protect from malware, which was not written yet. Ransomware is probably the biggest reason why you would want to have active antivirus protection.
With other types of malware: adware, spyware, Trojans, you can download the antimalware software, scan and in most cases, remove the threats. There is no point downloading anti-malware software because it will not be able to decrypt your data. There is a web site nomoreransom. They have a list of malware that they can help to fix. First, you have to identify the type of Ransomware you encountered by following their instructions.
If the threat is in their list, they will provide decryption tools. While preventing it is hard, there is one thing you can do to minimize the effect. You should invest time in a backup strategy. The good thing is that Apple has a good backup software called Time Machine. I wrote an article which will teach you how to use it properly:. In case your MacBook was hit by Ransomware all you need is to restore the previous backup and scan for viruses. Hi, I am Al. I've been working with computers for more than 20 years and I am passionate about Apple products.
You can reach me at al macmyths. Skip to content. I think my Mac has a virus! History and Terminology For years we refer to bad behaving software like viruses and programs that detect and remove them as antivirus programs. Currently, the following types of malware still can damage your computer and data: Trojan horse is a software disguised as a legitimate software which activates the malware. Ransomware is a malware that encrypts data on computer disk and then requests a payment, usually in Bitcoins, to decrypt the files.
A worm is a malware that spreads over the network without human assistance. Adware — usually affects browsers, redirects then to unwanted sites. Adware developers make money from advertising. Spyware is a malware that steals sensitive data such as web site credentials, credit card data, etc.
Did you know? How do you know if your Mac is infected with a virus or malware? There are several symptoms that may or may not indicate that the Mac was infected with the malware: Your Mac is slow or crashes unexpectedly The startup disk is running out of space Pop-ups appear on the screen when you are online or offline The browser home page or search engine has changed without your permission The symptoms mentioned above can be caused by other things, however.
But if you suspect something, it never hurts to scan the Mac for malware. Will my Mac tell me if I have a virus or malware? Gatekeeper As we all know the safest place to download Mac software is App Store. Click on Software Update pane.
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Keep automatic updates on How to check a downloaded app for malware Every time I download an app from the internet I check it for malware. Can you get a virus from browsing the internet? There are multiple possible ways of getting a virus even without downloading anything from the internet: Browser vulnerabilities. If a browser has a security hole that malicious code can exploit, it can be used as an entry point for a malware attack.
To prevent such attacks keep the browser up to date. Application vulnerabilities. Flash player is famous for having serious security issues by the way most browsers will drop Flash support by the end of But there are other apps that may kick in when opening a document or clicking on an image in the browser.
Links in emails. If the email contains a link, before clicking on it, make sure that it points to a web site you recognize. Also, make sure that email is coming from the person or company you know. Java security holes. Malvertizing Malvertizing stands for malicious advertising , and here is how it works.
There are three ways to close the browser in this case: Force Quit. Select the browser and then click on the Force Quit button. If force quit does not work, then reboot the Mac. Click on the Apple logo in the top left corner of the screen and then on Restart. Shut down.
Push on Power to start it back. Force Quit Browser If the next time you start the browser, it asks to restore previous sessions cancel it — there is no need to open the same page again. Which browser is the most secure? He and I enabled the screen share and here is exactly what he told me to do: Start Safari.
Type malwarebytes. Make sure to read the link because the first link in google search results may point to another page. Click on Free Download button. Open Finder and go to the Downloads folder. Double click on the file that starts with Malwarebytes — the one you just downloaded. The installer program will start.
Do Apple computers get viruses?
Keep clicking on Continue, Agree, and Install buttons until the application gets installed. At some point, it will require to enter the admin password. After installation, Malwarebytes will offer 14 days of Premium option for free. Click Not Now. Choosing the best antivirus There are other antimalware programs besides MalwareBytes, and many of them are good. I tried to find the answer, and here are my findings: There are good several antimalware software choices.
A side note on Ransomware Ransomware is probably the biggest reason why you would want to have active antivirus protection. Ramsomeware example However, there are exceptions. In some cases, the effects of the Ransomware can be rolled back. How to prevent Ransomware While preventing it is hard, there is one thing you can do to minimize the effect. What do I do to stay secure I never open links from emails.