System Notes Mac

System Notes

System Notes is an add-on for different browsing programs that experts regard as rogue software because of its ability to hijack the browser. System Notes will take over the settings of your Mac browser and replace them with its own to show ads on your screen.

System Notes Mac

System Notes on Mac

The adverts shown by this app will most likely generate money on a Pay-Per-Click basis meaning that each time you accidentally or deliberately click on an advert, this advert would generate a small amount of income for the people who have created the invasive browser add-on. Also, in order to further increase the revenue earned, this undesirable app may also get you page-redirected to different partnering sites that are in need of a traffic boost. The owners of those websites pay the creators of System Notes to have their sites advertised in such a way. The homepage and search engine of your Firefox, Chrome, or Safari are also likely to get altered by the activities of the unwanted software. This, too, is done with the purpose to get you redirected to different sites more frequently and to display more ads on your screen.

System Notes for Mac

System Notes for Mac is a rogue app that is defined as a browser hijacker because it installs in the main browser and takes over it. System Notes for Mac can introduce various changes to the browser in order to get you to click on its ads.

System Notes Mac

The SystemNotes Virus prevents the properly start of the system and when it does, it incorrectly shows low battery .

As we have already pointed out, the more ads you click on, the higher the amount of money earned by the hijacker on your computer. This is also why you will likely see the ads everywhere on your screen while you are browsing, especially over the important parts of the page you are on. For instance, if you are watching a YouTube video, the ads will appear over said video, thus hiding it from your sight and forcing you to interact with the advert in some way so as to get it out of the way. Clicking on the adverts X/Close button, however, is not advisable – it will always count as a click on the ad itself which would, in turn, result in a redirect to some ad-heavy site. The main problem here is that the site you may get redirected to may not be safe – it may be a sham page with phishing elements in it or a page loaded with Viruses, Trojans, Spyware, or Ransomware.

What is System Notes?

System Notes is an unwanted app of the browser-redirecting type that will ceaselessly spam your Mac browser with redirects to ad-heavy sites until uninstalled. System Notes normally infects the browser after the user installs a file bundle that has the hijacker included in it.

If you want to keep hijackers off your Mac in the future, be sure to always check the advanced setup options in all software installers you are about to run.

The SystemNotes app

The SystemNotes app is a kind of browser-hijacking software known for its generation of paid ads and its unwanted page-redirects to promotional sites. The SystemNotes app typically doesnt give the user a straightforward uninstallation option but its still possible to safely remove it.

For example, if you closely follow the guide posted on this page, you should be able to remove this app quickly and without risk for your system.


Name System Notes
Type Browser Hijacker
Danger Level Medium (nowhere near threats like Ransomware, but still a security risk)
Symptoms The surest signs you have a hijacker is if your browser starts behaving oddly and frequently redirects you to ad-heavy pages.
Distribution Method Spam social media messages and e-mails as well as misleading clickbait ads and banners are oftentimes sources of hijacker infections.
Detection Tool

Remove System Notes Virus from Mac

For a quick way to remove System Notes try to do this inside your Mac browser:

  1. Open your Mac browser.
  2. Go to Preferences.
  3. Now navigate to the extensions sub-menu.
  4. Look for any unfamiliar entries, including System Notes.
  5. Remove System Notes from your Mac as well as any other suspicious-looking items by clicking on the trash bin icon.

If this does not help then continue reading this article for more detailed instructions on how to get rid of System Notes!

System Notes Mac

The first thing you need to do is to Quit Safari (if it is opened). If you have trouble closing it normally, you may need to Force Quit Safari:

You can choose the Apple menu and click on Force Quit.

Alternatively you can simultaneously press (the Command key situated next to the space bar), Option (the key right next to it) and Escape (the key located at the upper left corner of your keyboard).

If you have done it right a dialog box titled Force Quit Applications will open up.

In this new dialog window select Safari, then press the Force Quit button, then confirm with Force Quit again.

Close the dialog box/window.

System Notes Mac


Start Activity Monitor by opening up Finder, then proceed to System Notes Mac

Once there, look at all the processes: if you believe any of them are hijacking your results, or are part of the problem, highlight the process with your mouse, then click the “i” button at the top. This will open up the following box:

System Notes Mac

Now click on Sample at the bottom:

System Notes Mac

Do this for all processes you believe are part of the threat, and run any suspicious files in our online virus scanner, then delete the malicious files:

System Notes Mac
Drag and Drop Files Here to Scan
Maximum file size: 128MB.

This scanner is free and will always remain free for our website's users. You can find its full-page version at:

Scan Results

Virus Scanner Result
System Notes MacClamAV
System Notes MacAVG AV
System Notes MacMaldet

System Notes Mac

The next step is to safely launch Safari again. Press and hold the Shift key while relaunching Safari. This will prevent Safari’s previously opened pages from loading again. Once Safari is opened up, you can release the Shift key.

On the off chance that you are still having trouble with scripts interrupting the closing of unwanted pages in Safari, you may need to take some additional measures.

First, Force Quit Safari again.

Now if you are using a Wi-Fi connection turn it off by selecting Wi-Fi off in you Mac’s Menu. If you are using a cable internet (Ethernet connection), disconnect the Ethernet cable.

System Notes Mac

Re-Launch Safari but don’t forget to press and hold the Shift button while doing it, so no previous pages can be opened up. Now, Click on Preferences in the Safari menu,

System Notes Mac

and then again on the Extensions tab,

System Notes Mac

Select and Uninstall any extensions that you don’t recognize by clicking on the Uninstall button. If you are not sure and don’t want to take any risks you can safely uninstall all extensions, none are required for normal system operation.
System Notes Mac

The threat has likely infected all of your browsers. The instructions below need to be applied for all browsers you are using.

Again select Preferences in the Safari Menu, but this time click on the Privacy tab,
System Notes Mac

Now click on Remove All Website Data, confirm with Remove Now. Keep in mind that after you do this all stored website data will be deleted. You will need to sign-in again for all websites that require any form of authentication.

Still in the Preferences menu, hit the General tab

System Notes Mac

Check if your Homepage is the one you have selected, if not change it to whatever you prefer.
System Notes Mac

Select the History menu this time, and click on Clear History. This way you will prevent accidentally opening a problematic web page again.

System Notes Mac How to Remove System Notes From Firefox in OSX:

Open Firefoxclick on System Notes Mac (top right) ——-> Add-onsHit Extensions next.

System Notes Mac

The problem should be lurking somewhere around here –  Remove it. Then Refresh Your Firefox Settings.

System Notes MacHow to Remove System Notes From Chrome in OSX:

 Start Chrome, click System Notes Mac —–>More Tools —–> Extensions. There,  find the malware and  select  System Notes Mac.

System Notes Mac

 Click System Notes Mac again, and proceed to Settings —> Search, the fourth tab, select Manage Search Engines.  Delete everything but the search engines you normally use. After that Reset Your Chrome Settings.

If the guide doesn’t help, download the anti-virus program we recommended or try our free online virus scanner. Also, you can always ask us in the comments for help!


About the author


Brandon Skies

Brandon is a researcher and content creator in the fields of cyber-security and virtual privacy. Years of experience enable him to provide readers with important information and adequate solutions for the latest software and malware problems.

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