These image files can either be mounted as regular disks for copying files onto them, or serve as a base for RAM disks. The RAM Disk software uses its own format for image files. In this case, an image file can be used for saving the contents of a RAM disk before the computer is turned off, and restoring the contents back to the RAM disk when it is turned on next time. However, some users require the contents of a RAM disk to be kept. Usually, RAM disks are volatile and used precisely because they erase all their contents after the computer is turned off. For formatted disks you can also set to automatically create one or more empty folders on the disk by specifying their names one per line in Create Folders field, and then use the paths to these folders in settings of other apps for cache or temporary files locations.An image file is a regular file that contains an image of a disk. Lastly, under File System Options choose the disk’s File System if you want the disk to be formatted. Tick Wipe Memory on Dismount to securely wipe out the memory used for the RAM disk on dismounting the disk. If left unticked, the disk will be populated with the image file contents at the start, but will not save any changes made to the contents afterwards. Tick Save Contents to Image to write the current RAM disk contents to the associated image file on shutdown. Also, if you are using an image file and choose this option, make sure the image file you create is the Hard Disk type. The downside is that, with an extra layer of emulation, it is slower than a standalone volume. If you encounter these issues, turn this setting on. Some specialised applications or disk utilities may not work with a standalone volume, producing I/O errors or simply unable to access it. Tick Hard Disk Emulation if you want to emulate a complete hard disk drive with partitions indistinguishable from a real device. These folders are used by the Recycle Bin and System Restore features. Tick Mount as Removable if you do not want Windows to create the Recycled or System Volume Information folders on the disk. The options grouped under Mount Options allow you to configure what will happen upon mounting and dismounting the disk, as well as a Drive Letter you wish the disk to be assigned to. The size of an image-based RAM disk is determined by the size of the image file. If you are creating a persistent RAM disk that can keep its contents between sessions, you will need to create an image file first, then leave the disk size field empty and specify the Image File Name with its full path. For that, in Disk Information section you will need to specify the disk Size in megabytes and leave the image file field empty.
In most common usage scenario, you will be creating a volatile RAM disk that erases all its contents on shut down.
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