Clean Mastercam Installation

If you want to completely remove Mastercam before reinstalling it, it is important to uninstall the program and delete its related folders and registry keys. Follow the instructions below to ensure that the installation is completely clean.

1. Uninstalling Mastercam

Start by removing Mastercam through Windows:

• Press the Windows key and type “Add or remove programs.”
• Find Mastercam and select Uninstall.

2. Deleting Mastercam folders

Delete the following folders to ensure that no files from the previous installation remain:

• C:\Program Files\Mastercam 20xx
• *C:\Users\Public\Documents\Shared Mastercam 20xx*
• *C:\Users\USERNAME\Documents\My Mastercam 20xx*

Replace “20xx” with the Mastercam version year and “USERNAME” with your own Windows user name.

3. Deleting registry keys

To ensure a completely clean installation, you must also delete the registry keys associated with Mastercam:

• Press the Windows key, type “regedit,” and open Registry Editor.
• Delete the following keys:
  • Computer\HKEY_CURRENT_USER\Software\CNC Software\Mastercam 20xx
  • Computer\HKEY_LOCAL_MACHINE\SOFTWARE\CNC Software\Mastercam 20xx

(In older versions, the key may be located at: …Software\CNC Software, Inc.\Mastercam 20xx)

4. Reinstalling Mastercam

Once the previous installation has been removed, you can reinstall Mastercam:

• Open the installation file.
• Right-click it and select “Run as administrator” to ensure that the installation proceeds correctly.

After completing these steps, you will have a completely clean Mastercam installation, minimizing problems caused by old settings and files.