Beginner's Tutorial

System Encryption

 Supported Systems

 Hidden Operating System

 Rescue Disk

Plausible Deniability

 Hidden Volume

  Protection of Hidden Vol.

  Security Requirements

 Hidden Operating System



Hardware Acceleration

Encryption Algorithms





Hash Algorithms




Technical Details


 Encryption Scheme

 Modes of Operation

 Header Key Derivation

 Random Number Gen.


 Volume Format Spec.

 Standards Compliance

 Source Code

TrueCrypt Volume

 Creating New Volumes

 Favorite Volumes

 System Favorite Volumes

Main Program Window

 Program Menu

 Mounting Volumes

Supported Systems

Portable Mode


Tokens & Smart Cards

Language Packs

Hot Keys

Security Model

Security Requirements

 Data Leaks

  Paging File

  Hibernation File

  Memory Dump Files

 Unencrypted Data in RAM

 Physical Security


 Multi-User Environment

 Authenticity and Integrity

 New Passwords & Keyfiles

 Password/Keyfile Change

 Trim Operation


 Reallocated Sectors


 Journaling File Systems

 Volume Clones

 Additional Requirements

Command Line Usage

Backing Up Securely


 Use Without Admin Rights

 Sharing over Network

 Background Task

 Removable Medium Vol.

 TrueCrypt System Files

 Removing Encryption

 Uninstalling TrueCrypt

 Digital Signatures



Issues and Limitations


Future Development


Version History



Miscellaneous >  TrueCrypt Background Task Search


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TrueCrypt Background Task

When the main TrueCrypt window is closed, the TrueCrypt Background Task takes care of the following tasks/functions:

1) Hot keys
2) Auto-dismount (e.g., upon logoff, inadvertent host device removal, time-out, etc.)
3) Auto-mount of favorite volumes
4) Notifications (e.g., when damage to hidden volume is prevented)
5) Tray icon

WARNING: If neither the TrueCrypt Background Task nor TrueCrypt is running, the above-mentioned tasks/functions are disabled.

The TrueCrypt Background Task is actually the TrueCrypt.exe application, which continues running in the background after you close the main TrueCrypt window. Whether it is running or not can be determined by looking at the system tray area. If you can see the TrueCrypt icon there, then the TrueCrypt Background Task is running. You can click the icon to open the main TrueCrypt window. Right-click on the icon opens a popup menu with various TrueCrypt-related functions.

You can shut down the Background Task at any time by right-clicking the TrueCrypt tray icon and selecting Exit. If you need to disable the TrueCrypt Background Task completely and permanently, select Settings -> Preferences and uncheck the option Enabled in the TrueCrypt Background Task area of the Preferences dialog window.

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  See also: Main Program Window

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