Third-party "driver updaters." They inject malware.
To ensure all features work correctly, follow these installation steps: Widnows 11 not 'seeing' my HP Scanjet 5590 Scanner hp scanjet 5590 full setup hot
The software finishes. The green light on the scanner stops blinking and glows steady. You hit the "Scan" button on the front panel. The carriage moves with a rhythmic, high-pitched zzzzzt... zzzzzt . Third-party "driver updaters
Avoid using the original CD if you are on Windows 10 or 11, as those drivers are often outdated. hp scanjet 5590 full setup hot
HP Scanjet 5590 scanners - How to scan a document that you can edit