@gjgrundman
==============================================================
Welcome to the HP Community.
Reminder to those reading:
Do NOT respond to individuals who post phone numbers or email addresses.
These might be scammers trying to steal your information / money.
HP does not post phone numbers or email in Community messages.
==============================================================
Flash has been permanently disabled as of 12-Jan-2021.
This causes the "startup" menu of the Solution Center to fail when you try to open the software.
There are options, both recommended and others that are "not supported" but do work according to those who have used them.
For those printers affected by the loss of Flash,
A collection of the recommended options are included in this Post, including a link to the TKB article:
https://h30434.www3.hp.com/t5/Printer-Setup-Software-Drivers/HP-Photosmart-4480-All-in-One-Printer-s...
If you do not like the recommended options, do not want to use these, or wish to see more,
Search the Community for "Solution Center" - sort the results by Date - open / read those threads that are of interest to you.
Notes
The only actual solution is to replace the printer.
Newer printers (since 2015) do NOT use Flash to start the printer software.
Thank you for participating in the HP Community.
The Community is a separate wing of the HP website - We are not an HP business group.
Our Community is comprised of volunteers - people who own and use HP devices
Click Thumbs Up to say Thank You.
Question Resolved / Answered, Click "Accept as Solution"
Dragon-Fur
