We apologize for the inconvenience caused by the new Microsoft specification that deletes the KS IME of KoreanWriterLT after updating the OS to Windows 10 or executing the automatic Windows program update.
If the above problem occurs, please restore the IME of KoreanWriterLT by the following operation.
When the input system of KoreanWriterLT is no longer displayed
Please try "any" of the following two operations.
(1) Adapt the IME reconfiguration program
[Operation Procedure]

1. Open the attached compressed file and save "IME-KSLT.ex" in the following J Seoul 9 or J Seoul Personal 2 folder.
In case of 64bit version C:\Program Files(x86)\KODENSHA\JSeoul9(In case of J Seoul Personal 2: Korean_Personal2)
In case of 32bit version C:\Program Files\KODENSHA\JSeoul9(In case of J Seoul Personal For 2: Korean_Personal2)
*Detailed procedure of the above operation
①Right click on the Start button to start "Explorer".
②「PC」no「Windows(or「C Drive」)」 and left-click on、
( Click on the displayed)「Program Files(x86)」wokuriltsuku
④「KODENSHA」 and left-click on、
⑤「JSeoul9(J Seoul Personal2no :Korean_Personal2)
」 left click on
(6) Open the compressed file attached to the e-mail and save "IME-KSLT.ex" in the "JSeoul9 (For J-Seoul Personal 2: Korean_Personal2)" folder above.
2. Rename the saved "IME-KSLT.ex" to "IME-KSLT.exe". (This is because ".exe" was not attachable, so we are renaming it and sending it to you. 3.)
Double-click "IME-KSLT.exe" to start the KoreanWriterLT IME setup program. 4.
Click "OK" to execute the following setting process.
Follow the dialog box (guidance) that appears.
When the User Account Control message is displayed, click "Yes".
Click "Reset IME" -> Click "OK".
Click "Sign out" and then click "OK".
Sign in again, start up your PC, display the desktop screen, and check if the IME has been restored (see below).
*Please refer to the following for confirmation.
1. Check if KoreanWriter LT (KS) is displayed in the "Language" setting of Windows and if "Unavailable items" remain.
(1) Click the [Start] button
(2) Click [Settings (gear icon)]
(3) Click [Time and Language] - [Region and Language (upper left of screen)] - [Language]
(4) Click Korean
(5) Click [Options] and check if KoreanWriter LT (KS) Click [Options] and check if KoreanWriter LT (KS) is available. If [Unavailable Items] remains, click [Unavailable Items] - Click [Delete].
(6) Start the Korean Digital Dictionary and check if the following settings are made in "Settings (S)" - "Input System (E)" on the menu bar.
(*If the following settings are not made, click "▼" to change to the following settings and confirm with "OK")
Japanese: TSF:Microsoft IME etc.
Korean: KoreanWriter LT (KS)
(⑦Start J Seoul (or J Seoul Personal 2) Bilingual Editor and check if the following settings are set in "Settings" - "Preferences" - "Input System" on the menu bar.
(*If the following settings are not set, click "▼", change to the following settings, and confirm with "OK")
Japanese: TSF:Microsoft IME etc.
Korean: KoreanWriter LT (KS)
(2) Reinstalling software
[Operating Procedure].
1) Uninstall J Seoul 9 (or J Seoul Personal 2) from the control panel.
Click here for detailed instructions.
Reinstall J Seoul 9 (or J Seoul Personal 2)
(3) Update the program
Please download and apply the modified module from the URL below.
J-Seoul 9
https://www.kodensha.jp/sstec/update/js/js9up.exe
J Seoul Personal 2
https://www.kodensha.jp/sstec/update/jsp2up.html