The executable itself is small, but the VC++ redistributables it downloads are roughly 15-25 MB, and DirectX runtime can be up to 100 MB. These are one-time downloads.
Despite its utility, ue4prereqsetup-x64.exe exists in a space that requires caution. Because it must request administrative privileges (UAC elevation) to install system-wide libraries, it is a potential vector for abuse. Malware authors have been known to name malicious files ue4prereqsetup-x64.exe to trick users into granting admin access. Therefore, while the legitimate executable is digitally signed by , a cautious user should always verify the signature by right-clicking the file, selecting Properties, and checking the Digital Signatures tab. An unsigned or incorrectly signed file of the same name should be treated as a hostile threat. For the legitimate file, however, trusting the signature allows the system to perform necessary, safe modifications. ue4prereqsetup-x64.exe
Essential libraries for handling high-performance multimedia, rendering 3D graphics, and processing game audio. The executable itself is small, but the VC++