Missing Windows 10 Start Menu

Hi Rick,

Welcome to Microsoft Community. Your interest in Windows 10 is highly appreciated. 

I’m sorry to know that start menu missing in Windows 10. Sorry for the inconvenience caused. I will be happy to assist you.

I suggest you to follow the below methods and check if that helps.

Method 1: Run the System file check (SFC) Scan and Repair System Files -The sfc /scannow command (System File Check) scans the integrity of all protected operating system files and replaces incorrect, corrupted, changed, or damaged versions with the correct versions where possible.

Please refer the below article:

http://answers.microsoft.com/en-us/windows/wiki/windows_other-update/system-file-check-sfc-scan-and-repair-system-files/bc609315-da1f-4775-812c-695b60477a93

Method 2: Perform Clean Boot

This issue also might occur due to some third party programs causing the issue. Clean boot will eliminate software conflicts that occur when you install a program or an update or when you run a program in Windows.

You may also troubleshoot or determine what conflict is causing the problem by performing a clean boot. Please refer the below article on “How to perform clean boot “
http://support.microsoft.com/kb/929135

Note: Follow How to reset the computer to start as usual after troubleshooting with clean boot from article KB929135 to reset the computer to normal mode.

Please feel free to contact us, if you need any further help we would be glad to assist you.

Thank you