When installing Windows 7 64-bit on a VM, which issue must be resolved for successful installation?

To successfully install Windows 7 64-bit on a virtual machine (VM), it is essential to ensure that there is sufficient hard drive space allocated. Windows 7 64-bit requires a minimum of 20 GB of free disk space for installation. If the allocated virtual hard drive does not meet this requirement, the installation process will fail, leading to errors related to insufficient storage.

Having adequate disk space allows the operating system to install all necessary files, updates, and future applications without running into issues from the outset. This consideration is crucial for maintaining system performance and functionality once the OS is up and running.