GiliSoft Private Disk User Guide

How to Create and Use an Encrypted Private Disk on Windows

Create one password-protected .gpd container for confidential files, open it only while private work is in progress, and close it when the files should return to protected storage.

  • Create one encrypted container for confidential files
  • Open the private disk only when you need its contents
  • Close, move, and back up the complete .gpd file safely
GiliSoft Private Disk Encrypt Files workspaceCreate or open a .gpd lockerGiliSoft Private Disk software box

The Private Disk workflow in four steps

A .gpd file is the encrypted container. When you open it with the correct password, Private Disk makes the protected storage available for normal file work. Closing the locker removes that open storage view while keeping the container on disk.

1

Create

Set the container location, maximum size, and password.

2

Open

Select the locker and provide its password.

3

Use

Copy, edit, and organize files inside the private disk.

4

Close

Close the locker after finishing the private work.

Remember: the .gpd file holds the protected data. Record its location and include the closed container in your backup plan.

1. Create an encrypted .gpd locker

Open Encrypt Files to create a new locker or reconnect an existing one. The same workspace shows each container and whether it is currently open or closed.

  1. Open Encrypt Files, then choose Create Locker.
  2. Enter a clear locker name and select where the new .gpd container will be stored.
  3. Choose a maximum size that leaves enough free space on the host drive.
  4. Create and confirm a strong password, then complete the creation wizard.
Before adding the only copy of an important file: keep a separate verified backup and store the locker password in a secure location.

2. Open, use, and close the private disk

  1. Select the required locker and click Open Locker.
  2. Enter its password, then open the private storage location presented by Windows.
  3. Copy, edit, organize, and save confidential files inside the opened private disk.
  4. Close documents, media players, editors, and File Explorer windows using the private disk.
  5. Return to Private Disk, click Close Locker, and verify that its status is Closed.
Closing File Explorer alone may not close the locker. Always confirm its status in Private Disk before leaving the PC.

Move, back up, and maintain a locker safely

Perform container-level operations only after the locker is closed. This prevents open files from interrupting a copy or move.

Move the private disk

Close the locker, move the entire .gpd file, then use Open Locker to select it from the new location.

Back up the container

Copy the closed .gpd file to separate reliable storage. Keep more than one copy for data that cannot be recreated.

Change the password

Verify the current password, set a strong replacement, and immediately update the secure password record used for recovery.

Use multiple lockers

Separate personal, business, archive, or project files when independent passwords and backup schedules make management clearer.

More tools included with Private Disk

These supporting workspaces are useful for portable delivery and lower-visibility storage. They are separate from the core .gpd locker workflow above.

Private Disk safety checklist

Back up the closed container

Encryption protects confidentiality; it does not replace a second copy against drive failure, loss, or accidental deletion.

Close before moving or unplugging

Close every file and the locker itself before moving the container or disconnecting removable storage.

Keep credentials recoverable

Use a unique password and store it securely. Do not rely only on memory for long-term archives.

Test the backup

Periodically confirm that the backup container can be located and that the current password is available.

Troubleshooting Private Disk

How do I open a .gpd file?

Open Private Disk, choose Encrypt Files, click Open Locker, select the container, and enter its password.

Why is a locker listed as not found?

The .gpd file may have moved, been renamed, or be stored on a disconnected drive. Locate the current container path and reconnect it.

Why will the locker not close?

Close every document, application, media file, and Explorer window using the private disk, then try Close Locker again.

Can I move a locker to another drive?

Yes. Close it first, move the complete .gpd file, then reconnect it through Open Locker.

What should I do before removing a USB drive?

Close the locker, wait for writes to finish, and use Windows safe removal before disconnecting the device.

What if I forget the locker password?

Use the secure password record prepared when the locker was created. Protected content may not be accessible without the correct credentials.

Related Private Disk guides

Create a private encrypted space for confidential files

Use GiliSoft Private Disk to create password-protected .gpd lockers and open them only when the protected files are needed.

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×Expanded Private Disk Encrypt Files screenshot
×Expanded Private Disk portable protection screenshot
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×Expanded Private Disk Password Wallets screenshot