Does RAM disk data survive a restart?

An empty RAM disk does not. Use an image-backed disk and an appropriate save policy when selected contents need to return after restart.

How much memory should I allocate to a RAM disk?

Leave enough physical memory for Windows and active applications first, then allocate only comfortable spare capacity to the RAM disk.

Can a RAM disk replace an SSD?

No. It is a focused workspace for temporary, frequently accessed, or intentionally image-backed data, not a replacement for permanent storage.

Which files should not be stored on a RAM disk?

Do not keep the only copy of documents, source media, project files, databases, or other important data on an unsaved RAM disk.

Will a RAM disk speed up every program?

No. Benefits are most likely when storage access is the bottleneck and the application can place suitable cache, scratch, or temporary files on the RAM drive.

Can RAM Disk reduce temporary SSD writes?

Yes. Moving recreatable cache and temporary activity into memory can keep those writes off the SSD, although SSD endurance varies by model and workload.

RAM Disk for Windows | Create a High-Speed Virtual RAM Drive

GiliSoft RAMDisk

Create a high-speed virtual drive from available system memory for browser cache, temporary files, build output, preview cache, and other frequently accessed working data.

Create empty or image-backed RAM drives

Choose the disk size, drive letter, and file system

Control automatic loading and image-saving behavior

Create a High-Speed RAM Disk on Windows

GiliSoft RAM Disk allocates part of the computer's physical memory and presents it to Windows with a normal drive letter. Browsers, development tools, media applications, and other software can then use that drive for cache, scratch data, temporary files, and repeated working output.

Create an empty disk when its contents can be discarded, or connect the RAM drive to an image file when selected data needs to be loaded again. Automatic loading and saving options help match the disk to the way the files are actually used.

A RAM disk complements an SSD or hard drive; it does not replace permanent storage. Keep important originals on normal storage and allocate only memory that Windows and active applications do not need.

GiliSoft RAM Disk main window showing disk creation and image mounting options

View the GiliSoft RAM Disk interface

RAM Disk Features

Create a Windows RAM drive

Allocate available memory to a virtual disk that Windows applications can access through a standard drive letter.

Set size, letter, and file system

Choose a practical capacity, an unused drive letter, and the file system required by the intended files or application.

Create Temporary or Persistent RAM Disks

Use an empty RAM disk for disposable cache and temporary files, or create an image-backed disk to restore selected contents after restart.

Save and Restore RAM Disk Data

Store the RAM disk contents in an image file on permanent storage, then load that image when the same folders and files are needed again.

Automate Image Loading and Saving

Load the latest image at startup and update it at shutdown, during sleep, on a schedule, or in real time.

Use fast storage where it matters

Point supported cache, temporary, scratch, build, or preview paths to the RAM drive while originals remain on permanent storage.

See GiliSoft RAM Disk in Action

Review the actual Windows interface for creating a drive, choosing its storage behavior, and controlling automatic image updates.

Create or mount a RAM diskStart an empty disk or mount a previously saved image.

Choose image-saving behaviorDecide where the image is stored and when changes are written.

GiliSoft RAM Disk automatic loading and saving options

Configure automatic operationControl startup loading, shutdown saving, and scheduled updates.

RAM Disk Speed Comparison

These example tests illustrate the difference between a memory-backed drive and ordinary local storage on the tested system. Results vary with memory, CPU, storage hardware, test settings, and system load; they are not a guarantee for every computer or application.

ATTO Disk Benchmark RAM disk comparison — Example transfer-size comparison for read and write activity on the tested system.

GiliSoft RAMDisk

Create a High-Speed RAM Disk on Windows

RAM Disk Features

Create a Windows RAM drive

Set size, letter, and file system

Create Temporary or Persistent RAM Disks

Save and Restore RAM Disk Data

Automate Image Loading and Saving

Use fast storage where it matters

See GiliSoft RAM Disk in Action

RAM Disk Speed Comparison

Temporary and image-backed modes

Normal Windows drive access

Flexible save policies

Clear control over memory use

Does RAM disk data survive a restart?

How much memory should I allocate?

Can a RAM disk replace an SSD?

Which files should not be stored on it?

Will a RAM disk speed up every program?

Can RAM Disk reduce temporary SSD writes?

Popular RAM Disk Guides

Create a RAM Drive for Cache, Temporary Files, and Working Data

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