A: No. The validation check is there for a reason. Ignoring it or trying to bypass it could result in a broken installation that crashes your system or fails to detect your iPhone/iPad.
3uTools requires deep system access, including driver installation (iTunes drivers, Apple Mobile Device Service, and its own USB multiplexing daemon). A corrupted installer could deploy a rootkit or a persistence mechanism. The validation is designed to protect you from a MITM (Man-in-the-Middle) attack during download.
: Temporarily disable Real-time protection in your Windows Security settings before trying the installation.