How to find the Computer Name at the Login Screen

1. At the login screen, press Ctrl-Alt-Del.
   
   
2. Click OK, if you understand toclick the warning.option for 'Other User'
   
   
3. Type .\ in the username username field.
   
   
4. you will see your computers name show up under the password field; CAS-WKTST-7X64 in this image: