If you are trying to fix a modern computer (Windows 10 or 11), you should use the PE version instead of 13.1. It includes modern networking, driver support, and recovery tools.
Hiren’s BootCD 13.1 is a legacy emergency toolkit designed for system recovery, featuring a vast collection of utilities for partitioning, backup, antivirus, and password recovery. Released in early 2011, this version is notably one of the last few releases before the project moved toward the modern Hiren's BootCD PE environment. Key Features of Version 13.1 Hirens Boot CD - How to download, boot and use it! hiren boot cd 13.1 iso download
"NTLDR is missing" when booting from USB. Solution: You burned the USB wrong. Use UNetbootin or RMPrepUSB. Do not simply copy the ISO. If you are trying to fix a modern