Windows 10 does not show the command prompt option by default, but you can still find it here:
C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Siemens NX 11.0\NX Tools
Hope this helps
Since I use the command window regularly I now add the NX start menu as a toolbar to the Windows 10 task bar.
Right click on the Windows task bar and select "Toolbars > New Toolbar".
Browse to "C:\Program Data\Microsoft\Windows\Start Menu\Programs\Siemens NX xx.x\" and choose Select Folder.
This will create a "Siemens NX xx.x" toolbar on the task bar from which you can click on the the ">>" icon and choose "NX Tools > Command Prompt".
I should clarify my previous reply, I did run update.bat, but I right clicked on it and ran as administrator, but I did not do it from command prompt. This was what GTAC had me try.
I just got this error!! I followed my steps to right click on the NX11 command window and "Run as administrator" and then dragged the NX11.0.1 ugs_update.bat file into the command window. The update completed successfully.