1. Unzip _MASTERCAM X8 HOT_.zip archive 2. Copy all folders and files from folder "original" to (by default C:Program FilesmcamX8 ) and overwrite original ones 3. Run "mastercamX8-Hotfix2.exe" and install HotFix2 for Mastercam X8 4. Copy all files and folders from folder "cracked" to (by default C:Program FilesmcamX8 ) and overwrite original ones