If you didn’t have any updates that required a restart, it’s still a good idea to restart your device to make sure any pending updates are installed.
For assisted support, try the Start menu troubleshooter. After you've completed the troubleshooter, restart your device.
If you still can’t open the Start menu or Cortana, try creating a new local administrator account to see whether you can open the Start menu using that account.
If you're signed in with your Microsoft account, remove the link to that account first by doing the following (otherwise see "Create the new administrator account"):
Create the new administrator account:
Next, make the new account an administrator account.
Sign out of your account and then sign in to your new account. If you can open Cortana or the Start menu, move your personal data and files to the new account.
If the problem still isn't fixed, try deleting the old administrator account:
If you were using a Microsoft account to sign in before, associate the Microsoft account with the new administrator account. In Settings > Accounts , select Sign in with a Microsoft account instead and enter your account info.
ID Artikel: 12385 - Tinjauan Terakhir: 31 Agt 2016 - Revisi: 38