a~nsisu_.exe is a application which is probably NOT a virus. So, if a~nsisu_.exe is on your computer, it is probably ok, and will NOT cause problems. Even if your PC is virus-free, it is still recommended to run a good antivirus with a good track record, in order to yourself your PC against potential security problems.
This application is normally stored in C:\Users\UserName\AppData\Local\Temp\A~NSISu_.exe.
The MD5 fingerprint for this file is 5021f7c0430d689e6563e138beb0772a.
This program is NOT registered as a Windows service. This is very good.
This exe runs in 32-bit mode. It can not benefit of the full power of modern computer chips. This ordinarily happens because the makers did not bother to upgrade it to use the x64 instruction set.
a~nsisu_.exe appears to have a visible user interface. This means it doesn't run in a kind of invisible mode. Its activity is clearly shown to the user.
A digital certificate is missing from this program. The publisher did not sign it. This is probably bad.
This executable does NOT have a removal routine set up in registry.