WFP installation fails because it cannot write ApplicationDescription to key

From Wordfast Wiki
Jump to: navigation, search


error message screenshot

You cannot install Wordfast Pro in Windows because it stops with this error message:

Could not write value ApplicationDescription to key \SOFTWARE\Wordfast LLC\Wordfast Pro\Capabilities. Verify that you have sufficient access to that key, or contact your support personnel.


  1. Shut down all programs and restart your computer.
  2. Go to Control Panel > Programs > Programs and Features and uninstall Wordfast Pro if it's installed.
  3. Download the installer from our website and start a fresh installation.
  4. When prompted for the installation type, choose Everybody (all users). Finish the installation steps.
  5. Go to the Wordfast Pro icon on the desktop, right-click it, and choose Properties.
  6. Go to the Compatibility tab.
  7. Make sure the option "Run this program in compatibility mode for:" is unchecked.
  8. Check the box "Run this program as an administrator" and press Apply.
  9. Press "Change settings for all users".
  10. Repeat steps 7 and 8.
  11. Press OK for each window.
  12. Double-click on the icon to start the program.

Other problems?

If you have other problems to install or open Wordfast Pro, see why Wordfast Pro fails to install in Windows or why Wordfast Pro fails to open.