Can open Excel files locally but not from network

 

Can open Excel files locally but not from network

Problem: 

Can open Excel files locally but not from network

Solution:

File -> Options -> Trust Centre -> Trust Centre Settings -> Protected View.

Clear all the ticks. Click OK.

Can not add local users

Can not add local users?

Solution:

Press 'Windows' + 'R'.
Enter command: control userpasswords2