windows 10 quick launch toolbar disappears on restart

https://answers.microsoft.com/en-us/windows/forum/windows_10-start/windows-10-quick-launch-toolbar-disappears-on/193a4890-9413-41a4-abea-f56688ba5eeb

Thank you for posting your query in Microsoft Community. I regret the inconvenience caused to you. Let me help you.

• Do you see any error message or error code on the screen?

I suggest you to perform the below troubleshooting steps and check if it helps.

Method 1: Run SFC Scan

Click on the below link and follow the procedure to perform a SFC Scan.

http://answers.microsoft.com/en-us/windows/wiki/windows_10-update/system-file-check-sfc-scan-and-repair-system-files/bc609315-da1f-4775-812c-695b60477a93

Method 2: Run PowerShell

• Open the Task manager.  Here’s a tip:  Press CTRL+Shift+ESC. 
• Click File > Run New Task 
• Make sure you have a check mark beside “Create this task with administrative privileges” 
• Type PowerShell 
• Type the following in the PowerShell prompt:$manifest = (Get-AppxPackage Microsoft.WindowsStore).InstallLocation + '\AppxManifest.xml' ; Add-AppxPackage -DisableDevelopmentMode -Register $manifest 
• Close the PowerShell window 
• Reboot

Check if it helps.

Please keep us posted on the issue. We will be happy to assist you accordingly.

Thank you.