Misconfiguring the bootloader can render your computer completely unbootable. If you use a cracked or altered version of EasyBCD that has been tampered with, the risk of bricking your system is exponentially higher. You could lose access to all data on your hard drive. While the official EasyBCD includes "Automated MBR Backup" features, a cracked version may have these safety features disabled.
Yes, it is a trusted utility created by NeoSmart Technologies. However, always ensure you download from a reputable source to avoid malicious files. EasyBCD Commercial 2.4.0.237 Portable.rar