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Entry type: FAQ Entry ID: 109767327, Entry date: 05/21/2019

How do you ensure that the SQL services can be installed properly after a function update of Windows 10?

  • Entry
  • Associated product(s)
SIMATIC WinCC and WinCC (TIA Portal) use the Microsoft SQL database. After a function update of Windows 10 it might happen that the SQL services cannot be installed or cannot be started subsequently.

You have run a function update of Windows 10 (Windows 10 version 1709 to version 1809, for example). When you install SIMATIC WinCC you get the error message "The following program could not be installed: SQL Server 2014 Standard Edition (WinCC) Setup cannot complete the installation".

The Windows 10 function update activates the Unicode UTF-8 coding in the Region Settings.


  1. Open the "Control Panel".
  2. In the category "Region and Language" you select "Change date, time or number format".
  3. Click the "Administration" tab and then "Change system locale".
  4. Disable the Unicode UTF-8 coding and confirm this with "OK".
  5. Reboot the system.

Recommendations about using Windows Updates are available in the following application example:

If the Microsoft SQL server does not start automatically after a function update of Windows 10, help is available in this entry:

Additional Keywords
Defective installation, Setup cannot complete the installation, SQL server, SQL server 2014, UTF-8

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