| Subject | English | Italian |
| comp., MS | dynamically expanding virtual hard disk | disco rigido virtuale a espansione dinamica (A virtual hard disk that grows in size each time it is modified. This type of virtual hard disk starts as a 3 KB .vhd file and can grow as large as the maximum size specified when the file was created. The only way to reduce the file size is to zero out the deleted data and then compact the virtual hard disk) |