textinputhost.exe is a application which is most likely NOT a virus or malware. So, if textinputhost.exe is on your PC, it is most likely ok, and will NOT be a cause for concern. Even if your system is virus-free, it is still recommended to use a well-known antivirus with a good track record, in order to defend your system against potential security problems.
Normally, this application is located in C:\Windows\SystemApps\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\TextInputHost.exe.
The MD5 fingerprint for this executable is 5aa74f80a68a38716f39f4a5f1024c23.
This program is NOT a Windows service. This is good.
textinputhost.exe appears to have something to do with Windows SFC (System File Checker) or Windows File Protection.
64-bit code has been detected. This exe can exploit the full power of a modern PC cpu.
File version 124.19305.0.0.
Maker Microsoft Corporation.
Copyright notice © Microsoft Corporation. All rights reserved..
textinputhost.exe appears to have visible windows. This is good because it doesn't operate in a kind of stealth mode. Its activity is clearly displayed to the user.
textinputhost.exe is digitally signed. Today the large majority of clean software applications are digitally signed.
The digital signature attached to textinputhost.exe verifies as ok. This is very good.
Digitally signed by: Microsoft Windows
Certificate's issuer name: Microsoft Windows Production PCA 2011
This program does NOT have an uninstall routine stored in registry.