Quick answer
Compare a pinned launcher with the running application before changing taskbar grouping. Duplicate buttons may reflect different shortcuts, app variants, or launch targets. Test one application at a time and keep its original shortcut details before repinning.
What matters for this task
A launcher is a saved path or app identity, while a running task button represents a window. Those are related but not identical. Desktop and Store editions of a program, or a shortcut with special arguments, can create confusing comparisons.
Steps to follow
- Close the affected app and inspect the pinned shortcut or the original shortcut from which it was pinned.
- Launch the intended app from Start or its normal installation location and verify that it is the correct edition.
- Unpin only the affected launcher, then pin the correct running application using the options offered by the active taskbar.
- Reopen the app twice and compare behavior before changing grouping, labels, or icon-cache settings.
Verify the result
The pinned icon should launch the intended application and relate predictably to its running windows. Verify any required shortcut arguments still work.
Limits and rollback
Restore the saved shortcut if repinning removes a required launch option. Do not delete unrelated pinned apps while diagnosing a single target.
Questions about this task
Is every duplicate icon a StartAllBack bug?
No. Different app identities, editions, or shortcuts can also produce separate buttons.
Should I rebuild all icon caches first?
Try the narrower shortcut and repinning checks before applying a system-wide cache reset.
Primary sources
Publisher claims and Windows procedures are linked below. The comparison and diagnostic steps are editorial guidance, not a claim of hands-on Windows testing.
Windows 11 download · Review compatibility and the publisher’s license terms before installing.
Download for Windows 11 File source and installation notes