Most software installs clutter the registry and leave traces. The variant is engineered to be run from a USB stick, network drive, or cloud-synced folder (Dropbox/Google Drive).
The safest way to obtain the legitimate "Advanced BAT to EXE Converter" is via the official developer's website, though version 2.83 may be considered legacy. Some abandonware archives host it for posterity. For the portable experience, you may need to use a standard installer version combined with a portable wrapper tool like Cameyo or ThinApp. advanced bat to exe converter pro 283 portable top