Do let us know if you are having problems with the USB installer. We will be happy to replace the entire USB drive free of charge if the issue is a corrupted installation file or a defective USB drive. A hardware defect and system incompatibility can also produce installation errors despite a faultless USB installer. Ensure that your motherboard is UEFI compatible and allows USB booting. Do take note that we do not offer technical support with regards to these issues. We assume that when you purchase any of our products, your system meets the minimum requirement and is running in pristine condition.