Hotfix.exe is a process that belongs to MSDDHotfix. Hotfix.exe is used in the installation of Windows NT hotfixes. A Windows NT hotfix is a collection of different files which can be applied to a system in order to fix an existing problem. The name, Hotfix.exe, is also used by cyber-criminals to mask malware. For example the main executable for the rogueware called ThinkPoint is named Hotfix.exe.