How to resolve 'Legacy software HP.com' alert on iMac with M1 chip?

Question

Level 1

4 points

How to resolve 'Legacy software HP.com' alert on iMac with M1 chip?

I am on an iMac, M1 chip, running OS 15.3.2. I received an alert regarding a Legacy software issue: "Existing software on your system loaded a system extension signed by “HP Inc.” which will be incompatible with a future version of macOS. Contact the developer for support."

I contacted HP, and they said it is an Apple issue. Does this mean that my HP printer will no longer work with the next MacOS update?

[Re-Titled by Moderator]

Posted on Mar 25, 2025 4:17 PM

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Answer 1

den.thed

Level 10

84,880 points

Mar 25, 2025 8:14 PM in response to KP-4-9-1

Reset the iMac's Printing System and re-add the printer,

as per > Reset the printing system on your Mac to solve a problem - Apple Support

If that doesn't fix contact HP Support,

at > https://www.hp.com/us-en/shop/pdp/hp-laserjet-mfp-m234sdw-printer

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Answer 2

KP-4-9-1 Author

Level 1

4 points

Mar 26, 2025 1:59 PM in response to KP-4-9-1

The link took me to an HP forum. One question was identical to mine, and an HP employee had responded with instructions, which I followed. First, I checked for any HP software on my iMac, which I did not have. Then I went to the HP Support site and located my printer. I did a firmware update for Mac OS 15. It wanted me to download Smart HP app, which I did not do, because I have been using this printer already. Probably tomorrow I will find out if I still get the alert. Thank you very much for your help!