Problem with the start button functionality.
Problem with the start button functionality.
It's possible the problem persists even after reinstalling Windows 10, possibly due to software conflicts or hardware factors. You're experiencing inconsistent behavior with the Start button and delayed program launches, which can indicate deeper issues rather than a simple reinstallation fix. Restarting Explorer doesn't resolve it either, suggesting the core issue lies elsewhere. Avoid reinstalling Windows multiple times unless necessary.
You haven't encountered many Windows 10 installations! @Jeki155550 should try the Microsoft Start Menu Troubleshooter, which is accessible via this link (it's not uncommon that Microsoft created such a tool!). Additionally, consider asking another user to check if it resolves the issue.
Typically the issue lies with graphics card drivers since the start menu is completely rendered by the GPU. Attempt to update the latest drivers or install an older one.
I handled it and there were no problems. I followed the tool Paul recommended, and the issue occurred only once after that. Thanks for the tip—it was fast to log out and back in, about five seconds. That resolved it without needing a full restart, which was unexpected.