A: No. Any website claiming a "safe" or "updated" loader for Edius 5.2 on Windows 10 is lying. Even if the loader bypasses the license, the core software is incompatible with modern Windows. Expect frequent crashes.
A: No. Emulating the dongle is against Grass Valley’s terms of service. Your only legal paths are buying a replacement dongle (if available) or upgrading to Edius 11. Edius Loader 5.2 Download-
We cannot stress this enough: Downloading an Edius Loader today is extremely dangerous. Here is why: A: No