Hello Petya Bancheva,
Thank you for posting in Q&A forum.
The description of this service you mentioned is:
Enables text input, expressive input, touch keyboard, handwriting, and IMEs.
Please note that disabling this service may affect the functionality of certain input methods, such as text input, expressive input, touch keyboard, handwriting, and IMEs.
Meanwhile, I can see both the start and stop buttons about this service are grayed out on my machine (below).
I suggest you don't disable this service.
I hope the information above is helpful.
If you have any questions or concerns, please feel free to let us know.
Best Regards,
Daisy Zhou
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