twcu.exe is a program which is probably legit. So, if twcu.exe is on your system, 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 defend yourself against viruses and malware.
This program is normally stored in C:\Program Files (x86)\TP-LINK\TP-LINK Wireless Configuration Utility\TWCU.exe.
The MD5 checksum for this executable is be908827fb35c39224196503cfcc3724.
This application does NOT run as a Windows service. This is usually a good sign.
This executable runs in 32-bit mode. It does not exploit the full set of features of nowadays' computer processors. This is quite normal because the makers did not bother to upgrade it to use the x64 instruction set.
This app does NOT have visible windows. This is most likely a bad sign.
Some unusual features of Windows have been used, such as functions for recording the keyboard. We recommend you to perform more in-depth research about this program.
A digital certificate is missing from this program. The authors did not bother to sign it. This is usually bad.
It has an uninstall routine, which is good. si are uninstall.