Does the warning “PDE.plugin will harm your computer” keep appearing on your Mac when it is printing?
Getting a pop-up warning every time you print a document can be annoying. It can even be alarming when the warning includes the phrase “will damage your computer.” But PDE.plugin is not malicious. The error is simply related to your HP printer driver.
macOS uses a control technology that ensures that only trusted software runs on your computer. But in 2020, Driver Certificates involuntarily revoked by HP on some older Mac versions. Which caused many HP users to experience PDE.plugin error.
The good thing is that now there are some easy solutions to this problem. We have examined HP and Apple support threads and other sources to compile a list of possible solutions for you. Here’s how you can quickly fix the “PDE.plugin will harm your computer” error on your Mac.
Let’s jump right in!
The PDE.plugin error comes with a note: Report the malware to Apple to protect other users. That’s just your Mac’s Gatekeeper in action. Label the plug-in as malware because it is unrecognizable since the HP driver certificates were revoked. Moreover, PDE.plugin is not malicious. You just need to help your Mac recognize it correctly.
One way to do this is to check for available Mac updates. HP printer driver updates may be available through macOS software updates. Make sure to check that out first.
Here’s how to update your Mac:
If that doesn’t solve the problem, you can try other resolutions below.
Many HP users found that removing and re-adding their HP printer works. But between removing and re-adding the printer, you need to download the latest software from HP.
Reinstalling your HP printer and the latest printer software may require several steps. But taking them helps your Mac recognize PDE.plugin as part of HP software.
Here is the step-by-step guide on how to implement this solution:
Here’s how to do exactly this trick:
If the problem doesn’t go away, you can try the next solution.
Some HP users found that removing and re-adding their printers did not work. Others even encountered a different alert: “Matterhorn.framework” will damage your computer. If the same thing happened to you, there is another solution you can try.
At this point, you may need to reinstall your printer driver. But this is not as easy as uninstalling the existing one and adding a new driver. It is crucial that you find and delete the entire HP folder on your computer before installing a new printer driver.
Now, try printing a document to see if it works. If the problem persists, we have a few more tricks up our sleeve.
If the above solution did not work for you, it is probably because you were unable to download and install a driver that perfectly matches the model number of your HP device. But do not worry. There is a simple solution to make sure you get the right software.
HP Easy Start allows you to conveniently update your printer driver. It is designed to help you configure the most up-to-date drivers compatible with your HP printer. You just need to download and install it correctly.
Here’s how to update your driver through HP Easy Start:
If that didn’t work, or if you simply want to ensure that there will be no problems with the installation, you can install HP Easy Start by following these steps:
With the latest and most compatible driver for your HP printer, you should be able to print documents without problems. But in case you still need another solution, use AirPrint.
AirPrint is an Apple feature that enables iPad and iPhone users to print wirelessly. No need to download or install drivers. You can do the same with Mac. That is possible as long as your printer supports AirPrint. See the list of AirPrint devices here.
Another requirement for printing wirelessly is that your Mac and the HP printer must be connected to the same Wi-Fi network. Also, be sure to remove any HP driver software that you have installed before. That could cause problems when enabling AirPrint.
Here’s how to reinstall your HP printer with Airprint:
Here’s another way to print via Apple’s AirPrint:
That concludes the article. We hope the solutions above have helped you fix the “PDE.plugin” error on your Mac. If you have any further questions or concerns, feel free to comment below. We will do our best to answer them and help you solve problems.
If this guide helped you, please share it. 🙂
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