Ctfmom.exe is a process that controls input such as speech or a pen & tablet, or using the onscreen keyboard, but not your keyboard. If you are experiencing a system error related to ctfmom.exe, you can try the following solutions:

• Disable the "Touch Keyboard and Handwriting Panel Service" in the Services app.
• Run the Keyboard troubleshooter in the Settings app.
• Check if the issue is hardware related by booting in Safe Mode.
• Repair Microsoft Office.

The “Unknown Hard Error” pop-up is an annoying one as it often appears while you are running a video game or any other intensive process on your computer and you may find that it occurs along with a process such as “explorer.exe”, sihost.exe or ctfmon.exe.

Usually, the System Warning: Unknown Hard Error is triggered by corrupted system’s files or registry entries and it leads to a black screen, taskbar freezing, and disappearance of desktop icons. Follow the instructions we have prepared in this article in order to find out more about how to fix the problem.

Solution 1: Try an SFC Scan Even though the SFC scan barely manages to fix any real issues (but Microsoft staff recommends it for virtually anything), this time it appears that this particular problem can be solved via this built-in Windows tool.

How to Fix Unknown Hard Error on Windows 7, 8 and 10