wininit.exe is a program which is most likely NOT a virus or malware. So, if wininit.exe is on your computer, it is most likely ok, and will NOT cause problems. Even if your system is virus-free, it is still recommended to run a well-known antivirus with a good track record, in order to defend yourself against viruses and malware.
This application is usually stored on disk in C:\Windows\System32\wininit.exe.
The MD5 fingerprint for this file is bf3e1d9b2360c6be4cc3094cd2ddc617.
This program is NOT a Windows service. This is good.
wininit.exe seems to have something to do with Windows SFC (System File Checker) or Windows File Protection.
This is a 64-bit executable. It uses the full capacity of modern CPUs.
wininit.exe is digitally signed. Today most serious software applications are digitally signed.
The digital signature attached to wininit.exe checks out perfectly. This is excellent.
Digital certificate name: Microsoft Windows Publisher
Certificate's issuer name: Microsoft Windows Production PCA 2011
This executable does NOT have an uninstall command stored in registry.