HxD 2.2.1 can be downloaded from our website for free. This free software was originally created by Maël Hörz. The software relates to System Utilities.
From the developer:
HxD is a carefully designed and fast hex editor which, additionally to raw disk editing and modifying of main memory (RAM), handles files of any size.
You may want to check out more software, such as System Mechanic, Reg Organizer or Process Lasso, which might be related to HxD.