Advanced system utilities to manage, troubleshoot, and diagnose Windows and Linux systems and applications.
Windows treats updated tray apps as new executables, so the visibility choice for the tray icon can reset after each update. There is currently no official setting to make that preference persist across app updates.
A documented explanation for similar cases is that the stored tray icon setting points to the old executable path after the app updates. When the app installs to a new versioned path, Windows sees it as a different executable and hides the icon again.
For Process Explorer, that means there is no supported built-in way shown here to keep the icon permanently unhidden across updates. The available options are:
- Turn the icon back on after each update in Settings > Personalization > Taskbar > Other system tray icons.
- If available in the hidden tray area, drag the icon from the hidden menu to the taskbar as a quicker manual workaround.
No product-side fix or persistent Windows setting is described here for this behavior.