searchui.exe is a program which is probably NOT a virus or malware. So, if searchui.exe is on your PC, it is probably ok, and will NOT be a cause for concern. Even if your system is virus-free, it is still recommended to purchase a well-known antivirus with a good detection rate, in order to defend yourself against viruses and malware.
This program is normally stored on disk in C:\WINDOWS\SystemApps\Microsoft.Windows.Cortana_cw5n1h2txyewy\SearchUI.exe.
The MD5 fingerprint for this file is d3f559352e34107ba2d9e17abc4fc798.
This program is NOT registered as a Windows service. This is very good.
searchui.exe appears to have something to do with Windows SFC (System File Checker) or Windows File Protection.
64-bit code has been detected. This program can exploit the full power of a current PC processor.
The description written in the exe is Search and Cortana application.
File version 10.0.16299.214 (WinBuild.160101.0800).
Producer Microsoft Corporation.
Intellectual property rights notice © Microsoft Corporation. All rights reserved..
searchui.exe has a digital signature. Nowadays most legit software applications are digitally signed.
The digital signature attached to searchui.exe checks out perfectly. This is very good.
Digitally signed by: Microsoft Windows
Certificate's issuer name: Microsoft Windows Production PCA 2011
This executable does NOT have an uninstall command set up in registry.