I love VMware, I hate Parallels, and I really hate programs that screw with my context menus.
By default both VMware Fusion and Parallels Desktop associate specific files on the Mac side with Windows applications. Because there's nothing better than accidentally double-clicking a text file with a .log extension and launching an entire VM to view it.
- Inside Fusion, open the Virtual Machine Library window – Window menu > Virtual Machine Library, or press CMD+SHIFT+L.
- Select the VM and click the Settings button.
- Click the Applications icon, and then select the Default Applications tab.
- Uncheck Open your Mac files and web links using Windows applications and close the window.
Repeat the process for every VM.