Some snippets for dealing with virtual machines, mostly for VMWare and macOS.

Run this inside a Windows VMWare virtual machine guest to shrink it.

1. Run your Windows VMWare virtual machine guest system
2. Install VMWare Tools in the guest system
3. Copy the windows-guest-cleanup-vm.bat file into your Windows guest system, for example into ~/Desktop

In the guest system, right-click and choose Run as Administrator. Enter your administrator password if needed.

Run this inside a macOS VMWare virtual machine guest to shrink it.

1. Run your Windows VMWare virtual machine guest system
2. Install VMWare Tools in the guest system
3. Copy the macos-guest-cleanup-vm.command file into your macOS guest system, for example into /Applications
4. In Terminal, cd to the folder where you saved it and type chmod gou+x macos-guest-cleanup-vm.command, press Enter

In the guest system, double-click to run or right-click and choose Open

Run this in your macOS host to defragment and shrink all VMWare Fusion virtual machines that are present in ~/Documents/Virtual Machines.

1. Save the macos-host-cleanup-vmware-vms.command file in your macOS host, for example into ~/Documents/Virtual Machines
2. In Terminal, cd to the folder where you saved the file and type chmod gou+x macos-host-cleanup-vmware-vms.command, press Enter

Double-click to run or right-click and choose Open

Run this to produce a macOS ISO file from Install macOS nnnnn.app. You can then install macOS as a guest system in your VMWare.

1. In your macOS host, download the operating system installer using App Store, so you have something like /Applications/Install macOS Monterey.app
2. Save the macos-create-iso.command file for example in ~/Desktop
3. Open the file in a text editor and adjust the name of your operating system that gets assigned to the MACOSNAME variable
4. In Terminal, cd to the folder where you saved the file and type chmod gou+x macos-create-iso.command, press Enter
5. Double-click to run or right-click and choose Open. Wait until it finishes, you should get something like ~/Desktop/Monterey.iso
6. Run VMWare Fusion, choose File > New and drag the ISO into Install from disc or image, proceed