You might have issues on Windows 10, version 2004 when using some Microsoft IMEs

Applies to: Windows 10, version 2004, all editions


Issue 1 - Resolved:

Some apps utilize the ImeMode property to control the IME (Input Method Editor) mode for individual text entry fields to increase typing efficiency. Some IMEs in Windows 10, version 2004 (the May 2020 Update) might have issues using the ImeMode property with certain apps.  For example, the input mode will not switch automatically to Full-width Katakana mode, Full-width Alphanumeric mode, or Full-width Hiragana mode.

For technical information on ImeMode property, see the developer documentation on IMEMode property and Control.ImeMode Property.

Note Please see the Next Steps section for resolution.

Issue 2 - Investigating:

Users of the Microsoft IME for Chinese and Japanese in some apps such as Microsoft Excel, might receive an error or the app might stop responding or close when attempting to drag with the mouse.


You can work around Issue 2 in the short term by following the steps below to enable compatibility mode:

  1. Select Start, type Settings and select it or press enter.
  2.  Type IME settings into the search box within Settings and select the IME settings that are appropriate to your language, for example Japanese IME Settings.
  3. Select General.
  4. Turn on Use previous version of Microsoft IME.

Note We do not recommend using the compatibility setting for the long term, but rather as a temporary workaround for users who are impacted by this issue.

Next Steps

Issue 1:

This issue was resolved in KB4565503.

Issue 2:

Microsoft is working on a resolution and will provide an update in an upcoming release.