Matterhorn Framework Removal

What is Matterhorn Framework

Earlier this week, Mac users started reporting that they are getting Apple alerts saying “Matterhorn.Framework will damage your computer”, “HPDeviceMonitoring.framework will damage your computer”, “HPDM.framework will damage your computer”, and similar alerts. In addition to these alerts, users were also unable to use their HP printers, as trying would show the alert. No matter what users pressed on the alert, it would reappear again and again, which would understandably annoy users.

This issue in particular only affects Catalina and Mojave Mac operating systems, High Sierra and older version users do not appear to be having any issues. This issue will also only appear on Macs connected to HP printers.

Alerts saying that something will damage the computer are shown by Gatekeeper, Apple’s security feature. It usually detects potentially malicious programs and prevents them from causing harm. However, this “Matterhorn Framework will damage your computer” does not mean that malware is on your Mac.

Once users started reporting on this issue, HP Inc told the Register that the reason this is happening is because they asked Apple to revoke its printer driver code-signing certificates, but it backfired.

“We unintentionally revoked credentials on some older versions of Mac drivers. This caused a temporary disruption for those customers and we are working with Apple to restore the drivers. In the meantime, we recommend users experiencing this problem to uninstall the HP driver and use the native AirPrint driver to print to their printer,” a HP Inc spokesperson said.

How to remove “Matterhorn.Framework will damage your computer” issue

For some users, reinstalling the HP printer worked, at least temporarily. Another workaround may be to use AirPrint. However, ultimately, the issue will have to be solved by HP and Apple. The good news is that both sides are aware of the issue so it should be fixed soon.

Offers

Download Removal Toolto scan for Matterhorn FrameworkUse our recommended removal tool to scan for Matterhorn Framework. Trial version of provides detection of computer threats like Matterhorn Framework and assists in its removal for FREE. You can delete detected registry entries, files and processes yourself or purchase a full version.

More information about SpyWarrior and Uninstall Instructions. Please review SpyWarrior EULA and Privacy Policy. SpyWarrior scanner is free. If it detects a malware, purchase its full version to remove it.

• WiperSoft Review Details WiperSoft (www.wipersoft.com) is a security tool that provides real-time security from potential threats. Nowadays, many users tend to download free software from the Intern ...

  Download|more

• Is MacKeeper a virus? MacKeeper is not a virus, nor is it a scam. While there are various opinions about the program on the Internet, a lot of the people who so notoriously hate the program have neve ...

  Download|more

• While the creators of MalwareBytes anti-malware have not been in this business for long time, they make up for it with their enthusiastic approach. Statistic from such websites like CNET shows that th ...

  Download|more

Quick Menu

Step 1. Uninstall Matterhorn Framework and related programs.

• Windows 8
• Windows 7
• Windows XP
• Mac OS

Remove Matterhorn Framework from Windows 8

Right-click in the lower left corner of the screen. Once Quick Access Menu shows up, select Control Panel choose Programs and Features and select to Uninstall a software.

Uninstall Matterhorn Framework from Windows 7

Click Start → Control Panel → Programs and Features → Uninstall a program.

Delete Matterhorn Framework from Windows XP

Click Start → Settings → Control Panel. Locate and click → Add or Remove Programs.

Remove Matterhorn Framework from Mac OS X

Click Go button at the top left of the screen and select Applications. Select applications folder and look for Matterhorn Framework or any other suspicious software. Now right click on every of such entries and select Move to Trash, then right click the Trash icon and select Empty Trash.

Step 2. Delete Matterhorn Framework from your browsers

• Internet Explorer
• Chrome
• Firefox
• Safari

Terminate the unwanted extensions from Internet Explorer

1. Tap the Gear icon and go to Manage Add-ons.
2. Pick Toolbars and Extensions and eliminate all suspicious entries (other than Microsoft, Yahoo, Google, Oracle or Adobe)
3. Leave the window.

Change Internet Explorer homepage if it was changed by virus:

1. Tap the gear icon (menu) on the top right corner of your browser and click Internet Options.
2. In General Tab remove malicious URL and enter preferable domain name. Press Apply to save changes.

Reset your browser

1. Click the Gear icon and move to Internet Options.
2. Open the Advanced tab and press Reset.
3. Choose Delete personal settings and pick Reset one more time.
4. Tap Close and leave your browser.
5. If you were unable to reset your browsers, employ a reputable anti-malware and scan your entire computer with it.

Erase Matterhorn Framework from Google Chrome

1. Access menu (top right corner of the window) and pick Settings.
2. Choose Extensions.
3. Eliminate the suspicious extensions from the list by clicking the Trash bin next to them.
4. If you are unsure which extensions to remove, you can disable them temporarily.

Reset Google Chrome homepage and default search engine if it was hijacker by virus

1. Press on menu icon and click Settings.
2. Look for the “Open a specific page” or “Set Pages” under “On start up” option and click on Set pages.
3. In another window remove malicious search sites and enter the one that you want to use as your homepage.
4. Under the Search section choose Manage Search engines. When in Search Engines..., remove malicious search websites. You should leave only Google or your preferred search name.
   

Reset your browser

1. If the browser still does not work the way you prefer, you can reset its settings.
2. Open menu and navigate to Settings.
3. Press Reset button at the end of the page.
4. Tap Reset button one more time in the confirmation box.
5. If you cannot reset the settings, purchase a legitimate anti-malware and scan your PC.

Remove Matterhorn Framework from Mozilla Firefox

1. In the top right corner of the screen, press menu and choose Add-ons (or tap Ctrl+Shift+A simultaneously).
2. Move to Extensions and Add-ons list and uninstall all suspicious and unknown entries.

Change Mozilla Firefox homepage if it was changed by virus:

1. Tap on the menu (top right corner), choose Options.
2. On General tab delete malicious URL and enter preferable website or click Restore to default.
3. Press OK to save these changes.

Reset your browser

1. Open the menu and tap Help button.
2. Select Troubleshooting Information.
3. Press Refresh Firefox.
4. In the confirmation box, click Refresh Firefox once more.
5. If you are unable to reset Mozilla Firefox, scan your entire computer with a trustworthy anti-malware.

Uninstall Matterhorn Framework from Safari (Mac OS X)

1. Access the menu.
2. Pick Preferences.
3. Go to the Extensions Tab.
4. Tap the Uninstall button next to the undesirable Matterhorn Framework and get rid of all the other unknown entries as well. If you are unsure whether the extension is reliable or not, simply uncheck the Enable box in order to disable it temporarily.
5. Restart Safari.

Reset your browser

1. Tap the menu icon and choose Reset Safari.
2. Pick the options which you want to reset (often all of them are preselected) and press Reset.
3. If you cannot reset the browser, scan your whole PC with an authentic malware removal software.