Microsoft kicked off the Windows 10 Fall Creators Update rollout a few hours ago, so the first batches of systems are already getting it, therefore the very first issues after the update are already being reported.
A number of users who have been offered the update to the Fall Creators Update or performed the upgrade manually using the Update Assistant claim the Start menu is no longer working once the process is completed and they get back to the desktop.
There are several posts on Microsoft’s Community forums pointing to various issues with the Start menu after the update to version 1709, and one of them claims that the Start menu is completely broken down. Others explain that the Start menu is “broken out of the box” and they cannot perform the typical tasks, like pinning or removing items.
Microsoft user net4u experiences a more complex issue, with several of his apps no longer included in the Start menu, but installed on the system as they can be launched with different methods.
“The apps are still there, deeply hidden. I noticed that if I browse with Edge on Windows App Store site, as expected is opened the Windows App Store from Windows 10. From here I can open various apps that are in my Library. So there also still exist somewhere. But there are not visible in taskbar, I can't pin them to taskbar and/or start menu,” he explains.
Microsoft’s support engineers who are tracking the forums have provided nothing more than the typical workarounds which aren’t making any big difference and it’s not yet known if the company itself is aware of the problem and working on a fix.
On the other hand, it’s important to keep in mind that the Fall Creators Update is a heavy operating system and bugs like this are likely to show up, especially if the upgrade is performed manually. This is the reason Microsoft ships the update in stages, as it wants to make sure that it fixes any compatibility issues before systems are being allowed to upgrade.